There are different forms of energy and one form of energy can be converted into another. When we light a wax candle, the process is highly exothermic and on burning, the chemical energy of the wax gets converted into heat and light. A good source of energy is to be selected for the choice of work to be done. In ancient times, wood was the most common source of heat energy. We, in our daily lives, use various energy sources for doing the work. Nowadays we use diesel and electricity to run trains. We also use fossil fuels in vehicles which has some serious disadvantages, mainly air pollution. The recent example of air pollution was ‘Smog’ in the National Capital Region of Delhi. This pollution was a result of burning ‘Parali’ in northern states of the country, which affected the eyes and also caused serious respiratory problems.
4(a) State the energy conversion that takes place when we light a wax candle. 1
4(b) List two criteria of selecting a source of energy for a specific work. 1
4(c) Write the names of two fossil fuels. 1
4(d) why are we looking at alternate sources of energy? 1

Answers

Answer 1

Answer:

shiii tbh thats hard

Explanation:


Related Questions

What might happen to your local hydrosphere and geosphere if conditions in the atmosphere caused rain for several weeks?

Answers

Answer:

the hydrosphere(bodies of water)would cause floods and other natural disasters while the geosphere will become infertile and landscape change (weathering).

Explanation:

Which of the features of this carbon-based macromolecule can be used to distinguish it from the other biological molecules?

Answers

Answer:

there are four major classes of biological macromolecules: 1. Proteins (polymers of amino acids) 2. Carbohydrates (polymers of sugars) 3. Lipids (polymers of lipid monomers) 4. Nucleic acids (DNA and RNA; polymers of nucleotides) Let’s take a closer look at the differences between the difference classes. Now that we’ve discussed the four major classes of biological macromolecules (carbohydrates, lipids, proteins, and nucleic acids).

Hopefully, this helps! And have a great rest of your day! :D

This question is incomplete. But I can answer Based on my previous knowledge.

The content of the Carbon-based macromolecules is the features that differentiate them from others.

The characteristics of a biomolecule are:

A chemical compound found in living organisms

They are formed by chemical substances composed mainly by:

CarbonHydrogenOxygenNitrogenSulfurPhosphorus

Biomolecules are the foundation of life and fulfill essential functions for living organisms. Additionally, Biomolecules can be:

Lipids, composed of Carbon (C), Hydrogen (H), Oxygen (O), and sometimes Phosphorus (P), Nitrogen (N), and Sulfur (S)Carbohydrates, composed of Carbon (C), Hydrogen (H), and oxygen (O)Proteins Carbon (C), Hydrogen (H), Oxygen (O), Nitrogen (N), Sulfur (S), and in some cases Phosphorus (P)Nucleic acids Carbon (C), Hydrogen (H), Oxygen (O), Nitrogen (N), and Phosphorus (P)

According to the above, each biomolecule can distinguish by the elements that compose it.

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what is Electron Transport?

Answers

Answer:The electron transport chain is a series of complexes that transfer electrons from electron donors to electron acceptors via redox reactions, and couples this electron transfer with the transfer of protons across a membrane. The electron transport chain is built up of peptides, enzymes, and other molecules

Explanation:give brianlest

Answer:

Medical definitions for electron transport

The successive passage of electrons from one cytochrome or flavoprotein to another by a series of oxidation-reduction reactions during the aerobic production of ATP, with the electrons originating from an oxidizable substrate and passing to molecular oxygen.

1Neurons are classified in several different ways. From the following statements, select which ones are true.
The two structural classifications are projection neurons and local inter-neurons.
Function classifications are made up of two subcategories: excitatory and inhibitory.
Histological classification includes bipolar, unipolar, and multipolar.
Classifications using a combination of structural, functional, and neurotransmitter type provide the most robust and useful description.
Classification by neurotransmitter type alone provides the most useful description.
A. I only
B. III only
C. I, II, and V only
D. I, II, III, IV, and V
E. I, III, and IV

Answers

Answer:

The correct answer is option D. I, II, III, IV, and V

Explanation:

Neurons are the nerve cells that transmit the information in the form of nerve impulses throughout the body. Neurons are an important part of the body and nervous system as neurons control the movement, any other functions of the body. Classification of neurons is presented on different ways such as structural basis, on the basis of functions, histologically, or on the basis of neurotransmitters used by neurons.

Histological classification - bipolar, unipolar, and multipolar.

Function classifications - excitatory and inhibitory.

structural classification - projection neurons and local interneurons.

All type of classification together makes a robust and very useful description of the neurons.

Which of the following biomes would not have plants with waxy leaves?
a)desert
b)chaparral
c)savanna
d)grasslands

Answers

Answer:grassland

explain: 1. try your best lu guys

2.try to look up all this biomed

3.see which one doe shot have waxy leaves

4.done

Three billion years ago plants began the process of photosynthesis. Why would
the appearance of plants that use photosynthesis to produce their food affect the
increase in atmospheric oxygen and the decrease in carbon dioxide?

Answers

Answer:

because plants take in carbon dioxide and produce and release oxygen

Answer:

The appearance of plants and their color would affect the atmospheric oxygen and would attract more of this chemical. The decrease in carbon dioxide would cause the plant to change in shape.

Explanation:

It depends on the type of the plant.

Explain how asexual reproduction works. what organisms undergo asexual reproduction?

Answers

Answer:

Asexual reproduction is a type of reproduction that does not involve the fusion of gametes or change in the number of chromosomes. The offspring that arise by asexual reproduction, either from a single cell or from a multicellular organism, inherit the genes of their single parent.

Answer:

Asexual reproduction is a type of reproduction that does not involve the fusion of gametes or change in the number of chromosomes. The offspring that arise by asexual reproduction, either from from a single cell or from a multicellular organism, inherit the genes of their single parent.

(it what it says on web.)

Explanation:

What is the energy input to the radiometer system? What form(s) of energy are present in the system as a result?

Answers

Answer:

What happens to the work done on a system? Energy is transferred into the system, but in what form? Does it remain in the system or move on? The answers depend on the situation. For example, if the lawn mower in Figure 1a is pushed just hard enough to keep it going at a constant speed, then energy put into the mower by the person is removed continuously by friction, and eventually leaves the system in the form of heat transfer.

Explanation:

because my mom told me

Which is considered a chemical mutagen? ​​

Answers

Answer:

The chemicals which help in imposing heritable changes in the genotype of an organism are termed as "Chemical Mutagens". "Hydroxylamine" (NH₂OH) and "Nitrous acid" (HNO₂) are chemical mutagens.

Explanation:

The correct sequence for the general adaptation syndrome is:_________
a) Exhaustion phase, alarm phase and resistance phase
b) Alarm phase, resistance phase and exhaustion phase
c) Resistance phase, exhaustion phase and alarm phase
d) Alarm phase, exhaustion phase and resistance phase

Answers

Answer:

The correct sequence for the general adaptation syndrome is: b) Alarm phase, resistance phase and exhaustion phase

Explanation:

The general adaptation syndrome describes what happens to our body when it is under stress.

The first phase is the Alarm phase. In this stage, the body activates the fight or flight response, causing an increase in adrenaline and cortisol, blood pressure, respiratory frequency, amongst other things that prepare us to react in a situation that we perceive as dangerous.

The second phase is the resistance one. During this phase, the body undergoes a different process that adapts it to manage the stress, with an elevated amount of cortisol and blood pressure.

The third phase is the exhaustion phase. If the stress levels continue to be high, the body passes to this stage. The body is exhausted and cannot keep dealing with stress, which causes mental and physical problems such as anxiety, depression, fatigue, stress-related illnesses, among other symptoms.

The maximum number of organisms of a particular species that can be supported by an environment is called


a logistic growth
b exponential growth
c carrying capacity
d population density

Answers

Answer:

its C, carrying capacity

Explanation:

I don't know I'm smart I guess lol

Carrying capacity is the maximum number of species an environment can support. Therefore, option "C" is correct.

What is carrying capacity?

Carrying capacity is the average number of the particular species that a be supported by a partial habitat is known as carrying capacity. The importance of the carrying capacity is that it helps in the determination of the size of the population that can be tolerated and supported by a particular environment.

The limiting factors of the area of habitat are water, availability of food, and space. The ways to increase the carrying capacity of the are the elimination of the competitor and decrease in the number of predators.

Carrying capacity helps in identification of the how much habitat can support species.

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the corn plant on the left has been grown with Lepidoptera sp. larvae, insects that feed on the corn’s cob and leaves. The corn plant on the right was not exposed to insects. Does this experiment provide enough information to conclude that the plant on the right is resistant to Lepidoptera, and why?

Answers

Answer: C) No, we cannot conclude whether or not the corn plant on the right is resistant because, it has not been exposed to Lepidoptera.

Explanation:

Choose THREE examples that correctly predict the effect of a change on the ecosystem.
А
A decrease in the kangaroo rat population will cause a decrease in the coyote
population
B
A decrease in the desert tortoise population will cause a decrease in the
rattlesnake population
Wc
A decrease in the rattlesnake population will cause an increase in the kangaroo

Answers

Answer:

The answer is option A "A decrease in the kangaroo rat population will cause a decrease in the coyote population"

Explanation:

Climate is a significant ecological impact on environments. Changing Climate influences biological systems in an variety of ways. For example, warming may constrain species to relocate to higher scopes or higher rises where temperatures are more helpful for their endurance.

Environmental change not just influences biological systems and species straightforwardly, it likewise communicates with other human stressors, for example, advancement. Although a few stressors cause just minor effects when acting alone, their combined effect may prompt emotional natural changes. For example, environmental change may worsen the pressure that land improvement puts on delicate water front zones. Also, as of late logged forested zones may get defenseless against disintegration if environmental change prompts increments in substantial down pour storms.

Control and Data

a tentative, testable scientific explanation

useful for determining the effect of the independent variable

Answers

Answer:

cacacacacacacacacacacacacacacaca

Answer:

kkdm

Explanation:

kmlnui

Which type of reaction does food digestion represent? During digestion, enzymes act on food to break down the complex substance present in food to simpler substances. These chemical reactions are ________reactions.

Answers

Answer:

reacts to a belch or a stomach pain if you eat to fast.

Explanation:

Answer:decomposition that the answer

Explanation:

which will cause an increase in runoff and infiltration in an area​

Answers

Answer:

More slopes on the ground, opened areas or potholes/sinkholes

Explanation:

(PLEASE HELP I WILL GIVE YOU 27 POINTS) Figure out how to make the diver sink.Figure out how to make the diver float again.Record your methods for changing the location of the diver in the space below.

this is for my science class please help me

Answers

Answer:

I have no idea

Explanation:

For how to make a diver sink just stand still on the water right?

1. Provide two examples of why coral reefs are important ecosystems on Earth.
2. Some corals in the warm pools off Ofu Island can withstand temperatures of 32° to 34 °C without bleaching. So, the researchers set up a controlled laboratory experiment to try to determine why these corals survive in such excessive heat. With regard to the experimental design, provide two reasons why Dr. Palumbi devised a standardized test for the corals.

Answers

Answer:

It provides shelter and protection.

Explanation:

Coral reefs are very important to our ecosystems on Earth because it provides shelter to a large population of ocean life and also provide protection to coastlines from strong ocean currents and high waves from causing damage. Dr. Palumbi devised a standardized test for the corals in order to find out that why coral reef can withstand temperatures of 32° to 34 °C without bleaching.

Answer

Dr. Palumbi devised a standardized test for the corals in order to find out that why coral reef can withstand temperatures of 32° to 34 °C without bleaching.

Explanation:

In the answer

Which elements are metals? Check all that apply.

Answers

i hope this helps you

Answer:

rhenium (Re), lithium (Li) , mercury (Hg)

Explanation:

hopes this helps u :)

small fish find shelter amongst the branching coral.
How does this make the reef a hearty food web?​

Answers

Answer:

uhmmm going out on a limb probably because they can get trapped in the coral

Which activity causes the least amount of wetland and estuary degradation when it occurs near the coast?
A. dune grass rehabilitation
B. hydrologic alterations
C. agricultural development
D. urbanization and land development

Answers

Answer:

The activity which causes the least amount of wetland and estuary degradation when it occurs near the coast is:

A. dune grass rehabilitation

Explanation:

This is actually a rehabilitation effort, unlike the other three options that cause land degradation.  A dune grass rehabilitation accretes sand and minimizes the rates of beach erosion. The program tries to protect coastal infrastructure and upland properties from storm damage by planting vegetation, fencing off sensitive areas, blocking storm surge, creating dune walkways, and absorbing wave energy.  During dune grass rehabilitation, activities that adversely affect the dunes are avoided.

Please answer will give brainliest.

Answers

Answer: the box will not move because balanced forces are acting on it

Explanation: there is a box in the middle and on either side is the same weight box pushing against either side of the initial box in the center with an equal force of 10N!

I hope I helped and I’m sorry if it’s wrong!

Even though mitosis and meiosis produce cells for different purposes, there are similarities
between the two processes. Which statement most accurately states how the two types of cell
division are alike?

Answers

Are u in British school because they give us that too also the yes there are similarities so they are alike

Sister chromatids separate during anaphase II and mitotic anaphase is the statement most accurately states how the two types of cell division are alike. Hence, option D is correct.

What is Sister chromatids?

Each chromosome is made up of two full-length DNA molecules joined at the centromere after DNA replication as part of cell division. They are two distinct DNA molecules known as sister chromatids.

Sister chromatids are two identical copies of the same chromosome that are produced by DNA replication and joined by a structure known as the centromere. They are divided during cell division, with one copy of each chromosome going to each daughter cell.

A chromatid is one of the two identical halves of a chromosome that has undergone replication ahead of cell division. The two "sister" chromatids are connected at the centromere, a constricted region of the chromosome.

Thus, option D is correct.

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The options are missing-

The daughter cells produced by both processes are haploid.

Homologous chromosomes cross over during the first prophase stage in both processes.

DNA replicates before mitotic prophase and prophase II.

Sister chromatids separate during anaphase II and mitotic anaphase.

What pathway provides the longest-lasting supply
of ATP?

Answers

Answer:

HERE IT IS....

Explanation:

Aerobic cellular respiration ......

Aerobic cellular respiration is the process that provides longest lasting supply of ATP. Explanation: In this pathway the oxygen is present in enough amount to carry out the long process. oxidative phosphorylation also provides a long lasting supple of ATP.

The difference between PCR and real-time PCR is thatA. real-time PCR can measure the amount of DNA amplified as the reaction proceeds, while standard PCR cannot.B. real-time PCR can amplify DNA a billion-fold within just a few hours, while standard PCR cannot.C. real-time PCR can determine the DNA sequence, while standard PCR cannot.D. real-time PCR uses DNA polymerase, while standard PCR does not.

Answers

Answer:

The correct answer is A. real-time PCR can measure the amount of DNA amplified as the reaction proceeds, while standard PCR cannot.

Explanation:

PCR (Polymerase Chain Reaction) is a molecular biology technique. Conventional PCR and real-time PCR are diferent types of PCR, and are both used to exponentially amplify DNA molecules. In both types, a polimerase enzyme is employed to sinthesize DNA copies. The main difference is that conventional PCR is qualitative whereas real-time PCR is quantitative. So, real-time PCR permits not only to detect and amplify DNA but also permits to perform a quantification of the target DNA. This is accomplished by measuring a fluorescence signal - which is directly the amount of DNA amplified- during the course of the reaction.

What is the role of digestion?​

Answers

Answer: Digestion is important for breaking down food into nutrients, which the body uses for energy, growth, and cell repair. Food and drink must be changed into smaller molecules of nutrients before the blood absorbs them and carries them to cells throughout the body.

Explanation:

Under which condition is the speed of cellular chemical reactions within a cell most likely to decrease?

Answers

Answer:

The products of the reaction decreases

Explanation:

When the product are formed in a chemical reaction it leads to decrease in chemical reaction rate in a cell.

What Factors Affect the Speed of Chemical Reactions?

Some chemical reactions are fast and some are slow due to presence of different  factors.

The collision between the reactants specially at the reactive site of the molecule will be needed to complete the chemical reaction.

So larger the size of reactant slower be the reaction or even no reaction occur due to less collision.  

The more surface area of the particle lead to more collision and faster the reaction.

More Concentration of chemical reactants lead to faster the reaction rate. Higher the pressure of the reactant lead to faster the reaction rate.

Increasing in temperature can also lead the molecules move faster, average kinetic energy of the molecule can also increases.  

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Which kinds of pathogens caused most of the pandemics of the past

Answers

Answer:

bacteria pathogens caused most of the pandemics

Bacteria has caused most of the pandemics in the past because it can be created/grown on its own.

Megalodon left an awful lot of teeth behind, but don't worry. It is likely that it had plenty of extras. Like modern sharks, Megalodon had several rows of teeth. Scientists believe that Megalodon had six rows of 7-inch-wide, razor-sharp teeth, top and bottom, for a total of 276 teeth in its giant jaws! It's no wonder, then, that this ancient shark left so many of them behind. Without this trail of teeth, we would not know that these enormous creatures swam the ancient oceans as a top predator.Select two sentences from below that best show that the author wants the reader to be able to relate Megalodon's size to everyday life




A.What would you expect a creature whose name means “big tooth” to look like?
B.The Megalodon shark deserves this title.
C.As the Greek roots mega- (“big”) and don (“tooth”) suggest, this awesome prehistoric creature certainly did have huge teeth—as well as a massive and powerful body.
D.Scientists estimate that these gigantic sharks stretched as long as 60 feet.
E.If you're having trouble imagining that, just think of a school bus, typically about 45 feet in length.
F.Now, imagine a shark just a bit larger than that school bus—with 7-inch teeth.
G.Yes, this ancient fish certainly earned the prefix mega!
H.Since these sharks are extinct, how do we know exactly how huge and powerful the Megalodon shark was?

Answers

The answer is D and F. I did the test

How could the pressure of a gas increase if temperature is constant?

Answers

Answer:

Gay Lussac's Law - states that the pressure of a given amount of gas held at constant volume is directly proportional to the Kelvin temperature. If you heat a gas you give the molecules more energy so they move faster. This means more impacts on the walls of the container and an increase in the pressure.

Explanation:

Other Questions
Jason plans on using 1/5 of an ounce of strawberry preserve in each dessert bowl. how many dessert bowls can he completely fill? Formal education that involves instruction by specially trained teachers who follow officially recognized policies is calleda schoolingc. home schooling.b. school choice.d. tracking.Please select the best answer from the choices provided Find the slope of the line that passes through the pair of points.4. (1, 6), (6, -1)7a.5b.57c.75d.57 Using your accounting knowledge, fill in the following separate income statements a through e. Identify any negative amount by putting it in parentheses. Statements: a b c d e Sales $100,000 $805,000 $2,000 $450,000 $100,000 Cost of goods sold Merchandise inventory (beginning) $10,000 $0 $100 $80,000 $25,000 Total Cost of merchandise purchases $30,000 $300,000 $0 $100,000 $10,000 Merchandise inventory (ending) ($10,000) $10,000 ($10) ($50,000) ($10,000) Cost of goods sold $30,000 $290,000 $90 $130,000 $25,000 Gross Profit $70,000 $515,000 $1,910 $320,000 $75,000 Expenses $10,000 $150,000 $1,000 $400,000 $50,000 Net Income (loss) $60,000 $365,000 $910 ($80,000) $25,000 Read the excerpt from "Elevator Systems of the Eiffel Tower, 1889" by Robert M. Vogel.The first complete elevator machine in the United States, constructed in 1855, was a complex and inefficient contrivance built around an oscillating-cylinder steam engine. The advantages of an elevator system independent of the mill drive quickly became apparent, and by 1860 improved steam elevator machines were being produced in some quantity, but almost exclusively for freight service. It is not clear when the first elevator was installed explicitly for passenger service, but it was probably in 1857, when Otis placed one in a store on Broadway at Broome Street in New York.In the decade following the Civil War, tall buildings had just begun to emerge; and, although the skylines of the worlds great cities were still dominated by church spires, there was increasing activity in the development of elevator apparatus adapted to the transportation of people as well as of merchandise. Operators of hotels and stores gradually became aware of the commercial advantages to be gained by elevating their patrons even one or two floors above the ground, by machinery. The steam engine formed the foundation of the early elevator industry, but as building heights increased it was gradually replaced by hydraulic, and ultimately by electrical, systems.According to this excerpt, what was an underlying cause of increased steam elevator production?construction of tall buildingsthe need to move supplies in millsan elevator in a store on Broadwaycommercial advantages The angle measures of a triangle are shown in the diagramwhat is the value of x?pls hurry its due soon what are 2 ratios equivalent to 2:12 Help quickly please... What is done to Native American instruments to make them more aesthetically pleasing PLEASE DEFINE EACH WORD!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! 1 fluoride 2 plaque3 dandruff4 decibel5 advertising6 optometrist7 infomercial8 endorsements 9 fraud10 comparison shopping11 specialist12 manage care. Identify the dependent clause in the following sentence : I cant drive until I turn sixteen in July. A. I cant drive B. In July C. I turn sixteen D. Until I turn sixteen Which of the following equations are linear? Hint: Two of them are linear.1. y = 7/x2. y = 3x + 43. 3x + 4y = 24 In this experiment, were intentionally manipulated. These were the independent variables. 100 POINTS!!!! (if u dont actually do it your answer will be deleted and the points will be take back) Was Andrew Jackson a great president? Opinions are mixed. What is yours? Consider the words that Jackson biographer James Parton wrote in 1859:"Andrew Jackson, I am given to understand, was a patriot and a traitor. He was one of the greatest of generals, and wholly ignorant of the art of war... He was the most candid of men, and was capable of the profoundest dissimulation... A democratic autocrat [dictator]. An urbane [sophisticated] savage. An atrocious [awful] saint." Now write a well-constructed essay (two paragraphs) of your own about the quality of the Jackson presidency. Be sure to start with a clear thesis statement and then give specific examples of events and issues to support your position. Jill bought a lamp at a garage sale for $12. She fixed the lamp and solid it in her furniture shop for $40. What was the approximate percent markup SOMEONE HELP ME PLEASE ILL GIVE BRAINLY Chemical change physical change explain how Buddhism diffused after the Tang Dynasty A customer ordered a product online for $299 and was charged an additional $10 for shipping and handling. The customer received a rebate of $99 and a $25 credit for turning in an old cell phone. After a tax of 4% was applied, how much did the customer pay for the product? needing help asap for anyone that knows!! How much simple interest would Kaitlin earn on $300 at 6% for 3 months?A. 27B. 9C. 54D. 18