Please I need help - due tomorrow - brainliest to the best answer


Write an explanation of why a scientist may want to perform an experiment about the effect of the concentration of salt on the amount of electricity produced. (2-3 Sentences)

Answers

Answer 1
Because Electrical energy needs in Pakistan are expected to continue to rise. The use of petroleum as a source of energy still dominates, although oil reserves in Pakistan are increasingly being depleted. Therefore, there is a need to develop alternative source of sustainable energy, such as Microbial Fuel Cell (MFC). MFC shows another type of renewable energy by changing natural matter into power with the help of microbes. In the present study, varied salt concentrations of a salt bridge in novel MFC design were analyzed. Sewage sludge was utilized, which contains a lot of organic materials and is additionally one of the major sources of ecological contamination, as substrate MFC. Saccharomyces cerverciae sp. (44 g) was used as a biocatalyst. Methylene blue (10 ml) was used as a mediator and potassium ferricyanide (100 ml) was used as an oxidizing agent for the conversion of sewage sludge into voltage generation using lab-scale double chamber MFC. Varied salt concentrations (1M, 3M and 5M of KCl and NaCl) of salt concentrations of salt bridge in a novel MFC design were analyzed. The maximum generated voltage, current, power, power density and current density with 1M KCl were 0.451 V, 0.0451, 0.0175561 mW, 0.000226001 mW/m2, 10.5166661 μA/m2 respectively. The MFC was run for a period of 1 day and readings were noted at regular intervals. The results obtained were helpful in designing an optimized MFC.
Answer 2

A scientist may want to perform such an experiment probably because they want to find out if there's another type of food or drink or spice that could create energy.


Related Questions

1. Name adaptations that an animal in a Florida mangrove swamp may have.
2. Describe adaptations that help alligators survive in a swamp.

Please do both questions.

Answers

Answer:

An animal may adapt to living in the extreme humidity and/or heat in a Florida mangrove swamp. Alligators may adapt to be able to see in the murky waters of the swamps. I hope this helpped!

Explanation:

Answer:

Some adaptations could be webbed feet, camo, and things like narrow bodys to help swim faster

Adaptations that help alligators survive in a swamp are webbed toes and long snouts. The webbed toes can help push the water while they are swimming, allowing them to move quickly through swampy waters.  The long snots along with sleek bodies and a strong tail these physical characteristics can help them dig burrows and swim faster.

Explanation:

I need 6 Kingdom chart or like define each kingdom

Answers

Answer/Explanation:

6 Kingdom Chart is Below;

~Learn with Lenvy~

kingdom , phylum, class, order, family, genus, species!!!!

If the subject with type 1 diabetes eats a low-carb food such as the cheese or peanuts, then the blood glucose levels will (increase/decrease/stay the same) after a three-hour digestion period.

Answers

Answer:

Incredibly increase

Explanation:

What does pollination depend heavily on? (Select all that apply.) i'll give brainliest pppleaaaseeee

Answers

Answer: it depends on the transfer of pollen from an anther of a plant to the stigma of a plant, later enabling fertilisation and the production of seeds, most often by an animal or by wind.

Explanation:

Answer:

It depends on gymnosperms

Please help!! Name adaptations that an animal in a Florida mangrove swamp may have.

Answers

Answer:

Animals could camouflage, can breathe underwater for a while, have the capabilities to run fast or avoid predators.

Staying away from predators, underwater breathing, camouflage

what is chlorophyll in photosynthesis?

Answers

Answer:green pigment inside chloroplast, it absorbs sunlight

Explanation:

Answer:

Explanation:

chlorophyll in photosynthesis is  the chloroplasts of plants, is the green pigment that is necessary in order for plants to convert carbon dioxide and water, using sunlight, into oxygen and glucose.

help me please i need da answer

Answers

Answer:

Blank 1 is H, blanks 2 and 3 are h, blanks 4 and 5 are will express, blanks 6, 7, 8, and 9 are h, and blank 10 is will not express.

10
Atom 1
Atom 2
Atom 3
Atoms
The atoms show four different elements. Which of the following atoms would be found in the
same group of the periodic table? *
(1 Point)
Atom 1 and 2
Atom 1 and 4
Atom 2 and 3
Atom 2 and 4

Answers

Answer:

1 and 2

Explanation:

this is because both atoms have 2 shells on their outer shell

Answer:

2 and 3

Explanation:

both atoms got 2 outer shells

Which is of better importance, the benefits that dams bring or the damage they do? Explain your reasoning.

Answers

Answer:

The benefits dams bring.

Explanation:

Dams are important because they provide water for domestic, industry and irrigation purposes. Focusing on the damage they do doesn't really help unless they are a major problem.

What is stated by the law of conservation of mass?

Answers

Answer:

a chemical reaction mass is neither created nor destroyed

Explanation:

a chemical reaction mass is neither created nor destroyed

In chemical reaction mass is neither created nor destroyed

THERE YOU GO
Which statements describe the advantages of sexual reproduction? Check all that apply.

results in no differences in DNA

takes longer than asexual reproduction

requires more energy than asexual reproduction

takes less time than asexual reproduction

results in DNA variations in the offspring

can result in less competition for resources

Answers

Answer:

Well I should have looked in the comments before I clicked but thank you so much :D have a bless day

Answer: It's the last two! :D

Explanation:

Took the quiz!!

What process completed division in a PLANT cell?

Answers

After mitosis comes cytokinesis, the division of the cytoplasm. This is another process in which animal and plant cells differ... In a plant cell, the cytoplasm is divided by the formation of a new cell wall, called the cell plate, between the two daughter cells.

Hope this helps! :)

How do classify species into taxa?

A. They look at where the species are found on Earth.
B. They compare the traits that species have.
C. They ask distant ancestors how they classified organisms.
D. They compare the common names of each species.

Answers

B. They compare traits that species have
I believe the answer is B

List 5 types of as3xual reproduction and give an example of an organism that uses each type.

Answers

The different types of as3xual reproduction are binary fission, budding, vegetative propagation, spore formation (sporogenesis), The following are examples of as3xual reproduction in unicellular organisms:Binary Fission - In binary fission, the parent cell divides into two equal halves called daughter cells, either transversely or longitudinally. Amoeba, for example, divides transversely, but Leishmania divides longitudinally.Several Fission - A parent cell divides into multiple daughter cells at the same time in multiple fission. Sporozoans, for example.Budding occurs when organisms create a bud on the surface of their body, which eventually develops into a distinct person. For instance, Budding Yeast.

Relationships Between Organisms
Your essay or paragraph need to include;
commensalism
Competition
Mutualism
Predator-Prey
Parasitism

Answers

Answer/Explanation:

Relationships Between Organisms

Everything on Earth doesn't exist in its own little bubble. Species interact every day. That interaction is a vital part of how organisms develop and change over time. When you study species, it is important to watch the way they interact with their surroundings. There are four basic types of relationships that living things have with one another.

Commensalism: Sometimes one species can benefit from a relationship and not hurt the other. That relationship describes commensalism. I've got a nice-looking branch that no one's using. A plant comes over and settles in. It uses my branch as a place to live. But what do I care? It doesn't bother me. That's what commensalism is all about. One plant gets a place to live and the other doesn't care and is not hurt.

Competition;This relationship is when two species are competing for the same resources. If there are only ten trees with fruit and I am better at reaching the fruit than you are, sorry, you don't get any. When you don't get any fruit you die. That's just the way nature works. It could go the other way though. If I kill all of the trees with the high fruit and only low fruit is left, you win. Competition usually happens when you have a limited amount of resources. There is one important idea to remember. Sometimes no one wins. Sometimes if everything is even it can be a stalemate and both species compete, but both survive. Imagine if we are different species, but have the same skills. No one would be a winner in that case.

Mutualism; The heart of mutualism is that two species live together in harmony. Both species receive an advantage by working with the other. It's wonderful. It's beautiful. More importantly, it helps them both survive. We previously spoke about the relationships between bugs and plants. That often happens as a mutualism type of relationship. We suppose you could also use rescue dogs as an example. The masters take care of the dogs and the dogs learn how to save people. Everyone benefits in the end.

Predator-Prey; There are many examples of predator-prey relationships: wolves eating rabbits, frogs eating insects, even a goat eating grass. Grass could be considered the prey. Somebody eats someone else. It's not pretty, but it does encourage the development and advancement of species.

Parasitism; There's a special type of predator-prey relationship called parasitism. Now you should think about all the creepy crawlies like fleas, viruses, and mosquitoes. They all feed off a host, not killing it right away but slowly sucking the life out of it. Parasites help no one but themselves.

~Learn with Lenvy~

Science (i dunno what it is- like what kind it is, I think biology- i don’t know)
Tides
OVERDUE
Have another assignment like this that I’ll be uploading to a different question

Answers

Answer:

A-

Tides are caused mainly by             in how much the moon's gravity pulls on different parts of Earth.

The force of gravity pulls the moon and Earth toward each other.

The moon's gravity causes high tide on the side closest to the moon.

The moon's gravity pulls Earth, leaving water behind causing an additional high tide.

Low tides occur between the two high tides.

There are 2 low tides and 2 high tides a day.

B-

Their combined forces produce a tide with the greatest difference between consecutive high and low tides, called a spring tide.

Spring tides occur once a month, at new moon and at full moon.

During the moon's first-quarter and third- quarter phases, the line between the moon and the sun is at right angles to the line between Earth and the moon.

This produces a spring tide, a tide with the greatest difference between consecutive low and high These occur twice a month.

(sorry I didn't really understand the first one)

In what ways are biotechnology and genetic engineering beneficial?

Answers

Answer: Biotechnology and genetic modification techniques have the potential to help meet the world's increasing food supply needs in more efficient, economical, and sustainable ways, by minimizing the use of important resources like land, water, and other inputs, helping reduce waste.

^^^ yeah that’s the answer

do what it says on the image (2 minutes left)​

Answers

Answer:

C

Explanation:

Its a sedimentary rock with I suppose

Answer:
c. Hyracotherium

Denver is located at a latitude of 39°N. How would solar elevation change for:

A location south of Denver (closer to the equator)?

B. A location north of Denver (closer to the North Pole)?

Answers

Answer: A. location south of Denver (closer to the equator)

Explanation: I'm 55% sure its right

Life science
What is biodiversity, and why is it important?

See first comment too, please

Answers

Answer/Explanation:

Biodiversity is the shortened form of two words "biological" and "diversity". Biodiversity is required for the processes that support all life on Earth, which including us (Humans). Why is it important? It because without biodiversity we cannot have the healthy ecosystems that we rely on to provide us with the air we breathe and the food we eat. Biodiversity holds ecological and economic significance. It provides us with nourishment, housing, fuel, clothing and several other resources.

Important reason include;

Biodiversity Protects Us. Biodiversity makes the earth habitable.Biodiverse ecosystems provide nature-based solutions that buffer us from natural disasters such as floods and storms, filter our water and regenerate our soils.Increase ecosystem productivity; each species in an ecosystem has a specific niche a role to playSupport a larger number of plant species and, therefore, a greater variety of crops.Protect freshwater resources.Promote soils formation and protection.

[RevyBreeze]

What is something special about regional climate?

Answers

It is the average weather of the region you are talking about

Which rabbit would be most likely to survive and why?​

Answers

Answer:

The white rabbits because they camouflage the best. It is easier to spot the brown rabbits because of how white the snow is.

Explanation:

Answer:

the white rabbits

Explanation:

because their color blends in with the environment

that leads to less predetors can see the rabbits and feed on them meanwhile the brown rabbits cant blend in and predetors can see them easily and feed on them

Help me please giving brainliest

Answers

Answer:

Explanation: rainforest! found typically in tropical areas with consistently heavy rainfall.
desert: very dry, hot in the morning and cold in night,

Grassland, a large open area of country covered with grass

Wetland: land consisting of marshes or swamps

Answer:

Desert: An area of land marked by low precipitation and extreme dryness resulting to harsh living conditions for plants and animals.


Grassland: Are areas covered mostly by a specific type of vegetation called grass instead of trees and shrubs.


Rainforest: This is an area typically made up of moisture driven vegetation. The vegetation is mostly tall tress with broad trees closely packed together.


Werlamds: This is an area of land mostly always covered with water year round. This areas is characterized by water, water loving plants and soggy soils



Hope you find it useful....

Which is true about the stratosphere?



The amount of oxygen gets thicker as you travel through the stratosphere.


The stratosphere is the only layer of the atmosphere that planes fly in.


The stratosphere is where the majority of weather takes place.


The stratosphere is where you would find the ozone layer and jet streams.

Answers

I believe it's D, the stratosphere is where you would find the ozone layer and jet streams.

The ozone layer is in the stratosphere, but jet streams are usually found in the tropopause—the area between the troposphere and the stratosphere.

Since the ozone layer part is right, I believe it's the last one.

I believe it's D, the stratosphere is where
you would find the ozone layer and jet
streams.
The ozone layer is in the stratosphere,
but jet streams are usually found in the
tropopause-the area between the
troposphere and the stratosphere.
Since the ozone layer part is right, I
believe it's the last one.

True or False?
3. True/False: The part of Earth where life exists is called a biome. *

Answers

Answer:

False

Explanation:

It is called the biosphere. The sphere of life

Answer:

The answer is: False

Explanation:

A biome is a large naturally occurring community of flora and fauna occupying a major habitat, e.g. forest or tundra.

The part of Earth where life exists is called a biosphere.

The biosphere is the regions of the surface and atmosphere of the earth or another planet occupied by living organisms.

Please make me brainliest!

Thank you.

How do wetlands improve water quality in a river system?

A.
trapping sediment
B.
filtering nutrients
C.
breaking down nutrients
D.
all of the above

Answers

The answer would be A trapping sediment
Your answer is B. May I please get brainliest?

Choose the best answer that explains why the location of chlorophyll plays an important role in the process of photosynthesis.
The process of photosynthesis requires direct absorption of sunlight so it needs to be located in the upper part of a leaf.
There is more protection for chlorophylls in the upper part or a leaf.
Chlorophyll needs direct access to oxygen for photosynthesis.
Chloroplast needs direct access to the spongy layer where water and gases are stored.

Answers

Answer:

Explanation:

answer: The process of photosynthesis requires direct absorption of sunlight so it needs to be located in the upper part of a leaf.

the first chocolate

Explain a situation where you restated a sequence of events.

Answers

She went for a walk in the forest. Pretty soon, she came upon a house." Then, we follow her through the sequence of events upon entering the house. First, she eats three bowls of porridge sitting on the table.

How does the gravity between the Moon and Earth cause the tides to rise and fall?
A. The position of the Sun interferes with the Moon's gravity.
B. During each quarter turn that Earth makes, the Moon and Earth line up in different positions, allowing for the high and low tides.
C. Earth makes four quarter turns each day, causing spring and neap tides.
D. The gravity of the Moon is stronger at night than during the day.

Answers

Answer:

i think it is a correct if im worng

Explanation:

Answer:

I believe the answer is B

Explanation: educated guess

Help me please giving brainliest

Answers

Answer:

if you add an answer choice i can help you

Explanation:

Word bank please, they usually give a set of words to choose from
Other Questions
it was the first day of your online class and you couldn't attend the class as you don't have smart phone.write down your feelings in about 100/120 words making a diary entry. imagine yourself as ayana. Emma's family traveled 5/8 of the distance to her aunts house on Saturday. They traveled 1/3 of the remaining distance on Sunday. What fraction of the total distance to her aunts house was traveled on Sunday? There are 32 students in your math 7 course. If there are 23 girls, what is the probability of one being pick to answer a question? What are some equity issues that you have encountered in your own life? Please help me with this assignment make sure you put it in your own words thank you for your help. An iPad is marked down from $700 to $575. What is the percent markdown of the iPad? Which of the following vitamins can be eliminated through the urine? Vitamin Bvitamin D vitamin Avitamin E Cody Jenkins and Lacey Tanner formed a partnership to provide landscaping services. Jenkins and Tanner shared profits and losses equally. After all the tangible assets have been adjusted to current market prices, the capital accounts of Cody Jenkins and Lacey Tanner have balances of $78,000 and $46,000, respectively. Valeria Solano has expertise with using the computer to prepare landscape designs, cost estimates, and renderings. Jenkins and Tanner deem these skills useful; thus, Solano is admitted to the partnership a 30% interest for a purchase price of $31,000.Required:a. Determine the recipient and amount of the partner bonus.b. Provide the journal entry to admit Solano into the partnership. c. Why would a bonus be paid in this situation? PLEASE HELPPPPP! Im so bad at math its not funny ________ refers to the amount of force a muscle, or group of muscles, is capable of exerting in one contraction. PLEASE HELP ASAP 50 PTS I NEED TO GIVE MY HOMEWORK Find the magnitude of the vector .WILL GIVE BRAINLIEST Which of the following objects has the greatest kinetic energy? baseball flying through the air at 90 miles per houra baseball flying through the air at 45 miles per hourO a baseball flying through the alr at 20 miles per houra baseball sitting on the ground What place on the earth has the highest air pressure? What is its elevation and air pressure? In the figure below, the angles with measures (2x) and (3x) lie along the same line./400(2x)(3x)What is the value of x? Show your work. The school store has 1500 pencils in stock and sells an average of 20pencils per day. The manager reorders when the number of pencils in stock is 460.Write an equation that can be used to determine in how many days the manager will have to reorder pencils. There are 4,315 pistachios in the bulk bin at the grocery store. Maria wants to split the pistachios into 40 packages so that each package has the same number of pistachios with none left over. Which explains whether or not it is possible? It is possible to split the pistachios into 40 packages because each package will contain 107 pistachios. It is possible to split the pistachios into 40 packages because each package will contain 108 pistachios. It is not possible to split the pistachios into 40 packages. It would be possible if there were a total of 4,280 pistachios. It is not possible to split the pistachios into 40 packages. It would be possible if there were a total of 4,380 pistachios. What do we need to know to convert SI units for any measurement? what about this?Which of these best explains the distribution of natural resources? A. Resources are distributed evenly across Earth's systems. B. Resources are distributed where they are needed by humans. C. Resources are distributed unevenly and often must be moved for human use. D. Resources are located in areas where they can be transported without damage to the environment. How did I get this wrong???? What is the gravitational force cause