PLZ HELPPPPPP

Which of the following is a possible consequence of solid pollutants in a lake or river?
O Build-up of garbage in freshwater
O Quick drop in dissolved oxygen
O Decrease in algae colonies
O Sudden hypoxic waters



HELP PLZ

Answers

Answer 1

Answer:

I believe it would be B.) Quick drop in dissolved oxygen

Answer 2

Quick drop in dissolved oxygen is a possible consequence of solid pollutants in a lake or river.

What is Biological Oxygen Demand?

Biochemical oxygen demand (BOD) is the amount of oxygen consumed by bacteria and other microorganisms while they decompose organic matter under aerobic conditions.

Solid pollutants in freshwater bodies like river and lake generally corresponds to organic wastes such as leaves, flowers and clothes which lead to increase in number of microorganisms in these water  that further results in increase of BOD.

Drastic increase in microorganisms lead to drop in amount of dissolved oxygen in water, thus the possible consequence of solid pollutants in a lake or river is quick drop in dissolved oxygen.

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Related Questions

Choose T (True) or F (False)

Answers

Answer:

a) true

b) true

c) false

d) true

e) false

plz help math It involves a graph and something I don't understand all I know is that it involves numbers if you answer this just for the points and if it is not a real answer for example (I'm just her for the points) you will be reported. Thank you but plz do help

Answers

Answer: These are the two equations graphed.

What is the use of electromagnets in metal recycling?​

Answers

Answer:

To pick up all the metal scraps

Explanation:

2. Observe: Click Play, and then click Pause after the green S-wave hits the station.
A. At what time did the S-wave hit?
B. What is shown on the seismogram at this time?

Answers

Answer:

Explanation:

b

The answer is b duhhhhg I just need to get my own answer sorry if it’s wrong really don’t care

the presence of a lophophore in a newly discovered species would suggest that the species ________.

Answers

Answer: the answer is has an exoskeleton

The lophophore is the feeding organelle in aquatic organisms. Its presence in a species suggests that the species is a suspension feeder. Thus, option D is correct.

What are lophophores?

Lophophores are the feeding organelles present in the marine invertebrates like Brachiopoda, Hyolitha, etc., of the Lophophorata group. They are used for respiration, brooding, and collecting food.

Suspension feeders use these lophophores to collect and feed on the suspended organic matter and particles in the water. Lophophorates are a major example of suspension feeders.

Therefore, the presence of the lophophores suggests the species to be a suspension feeder.

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The complete question is attached to the image below.

Which is a part of the process of speciation?
A. Increased gene flow
B. Interbreeding between species
C. Fixing alleles
D. Divergence

Answers

According to the research, divergence is a part of the process of speciation.

What is divergence?

It is the process of speciation in which two closely related species evolve by changing a common ancestral structure in different ways.

In other words, starting from an ancestral structure, different species evolved by adapting to their environment and their needs.

Therefore, we can conclude that according to the research, divergence is a part of the process of speciation.

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The ____ of the material caused ____________ of the layers beneath.
PLEASE HELP ASAP! Best answer will get brainliest! (Earth Science)

Answers

Answer:

The layers of Earth provide geologists and geophysicists clues to how Earth formed, the layers that make up other planetary bodies, the source of Earth’s resources, and much more. Modern advances have allowed scientists to study what lies beneath our feet in more detail than ever before and yet there still remains significant gaps in our understanding.

Explanation:

Hope it's help

When HIV, which causes AIDS, invades the body of a person, that person often develops diseases. These diseases are caused by organisms that usually do not harm people who are not infected with HIV. Explain why the organisms are more harmful to people with HIV than to people without HIV

Answers

Answer:

the HIV virus most at time kill the organisms of the other disease hence reducing the effectiveness of those diseases

In your own words, what is a trophic cascade?

Answers

Answer:

A trophic cascade is a side-effect when a trophic level (species) of the ecosystem is reduced or removed. Their ecological species interactions keep entire ecosystems balanced. Hence, suppressing their numbers or changing their behavior due to predation risk, results in an ecological imbalance or a trophic cascade.

Explanation:

BRAINLIEST PLEASE ;)

Answer:

Tropic cascades in an eco-system is when a prey changes its behavior due to the predators attacks, thereby increasing in numbers indirectly for the survival of the predators.

The amount of available ______ limits the number of trophic levels in a community. please help!!!

Answers

Trophic levels
Explanation:
Decrease in energy at higher trophic levels limits the number of trophic levels in a food chain. When the number of links keep increasing, the amount of energy available decreases, as only 10% of energy gets transferred from one trophic level to the next.
The different feeding positions in a food chain or web are called trophic levels. Generally, there are no more than four trophic levels because energy and biomass decrease from lower to higher levels.

HELPPP
Which of these is not associated with expiration?
A. high pressure

B. relaxed diaphragm

C. increased volume

both B and C answers

Answers

Answer:

(A)

Explanation:

High pressure has nothing to do with expiration(breathing out).

Hope it helps :)

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Review

1. Describe the structures of the chloroplast where photosynthesis takes place.

2. What would happen if the stomata of a plant leaf were glued shut? Would that plant
be able to perform photosynthesis? Why or why not?

3. What are the reactants needed to perform photosynthesis? The products?

4. What happens to the products of photosynthesis?

Answers

Answer:

In plants, the process of photosynthesis takes place in the mesophyll of the leaves, inside the chloroplasts. Chloroplasts contain disc-shaped structures called thylakoids, which contain the pigment chlorophyll. Chlorophyll absorbs certain portions of the visible spectrum and captures energy from sunlight.

The plant leaf would not be able to perform photosynthesis. The leaf needs to have its chloroplasts facing the sun, so that they can absorb the sunlight to perform photosynthesis.

During photosynthesis, light energy converts carbon dioxide and water (the reactants) into glucose and oxygen (the products).

During the process of photosynthesis plants break apart the reactants of carbon dioxide and water and recombine them to produce oxygen (O2) and a form of sugar called glucose (C6H12O6). The oxygen will leave the plant through the stomata and enter Earth's atmosphere.Explanation:

point mutations, such as silent, nonsense, and missense mutations, are caused by

Answers

Answer:

damage to DNA during replication process

The condition called ________ is especially dangerous because the ureters or renal blood vessels can become twisted or kinked during movement.

Answers

Answer:

floating kidney

Explanation:

what bone in the human body is not connected to another

Answers

hyoid bone is not connected to the any other

HELP WITH SCIENCE PLS!!

what change to a property of a light wave would make the light wave appear dimmer?
a. reducing the waves frequency
b. reducing the waves amplitude
c. increasing the waves amplitude
d. increasing the waves frequency

Answers

Answer:

B.

Explanation:

The brightness of light is related to intensity or the amount of light an object emits or reflects. Brightness depends on light wave amplitude, the height of light waves. Brightness is also somewhat influenced by wavelength.

The brightness of light is related to intensity or the amount of light an object emits or reflects.

What is brightness?

Brightness depends on light wave amplitude, the height of light waves. Brightness is also somewhat influenced by wavelength.

When a source appears to be reflecting or radiating light, it is said to be bright. It's critical to comprehend the terminology and technology utilized in the lighting sector.

Lumens are a unit of measurement for light output from a bulb. A light's lumen count indicates its brightness; a lower lumen count indicates a dimmer light. Weight is like bananas, To milk are gallons, Lumens enable you to purchase the desired amount of light.

Therefore, The brightness of light is related to intensity or the amount of light an object emits or reflects.

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Which of the following are examples of sexual reproduction?

A yeast offspring grows out of the body of its parent in a process called budding.
A pollen grain from one flower fertilizes another flower, resulting in the development of a seed.
A bacterium copies its DNA and divides into two daughter cells in a process called binary fission.
A piece of a starfish is broken off and grows into a new starfish in a process called regeneration.
A frog releases sperm over eggs that were laid by another frog, and these cells fuse together. help :,)

Answers

Answer:

A pollen grain from one flower fertilizes another flower, resulting in the development of a seed.

A frog releases sperm over eggs that were laid by another frog, and these cells fuse together.

Explanation:

Sexual reproduction is brought about by fusion of male and female gametes. Reproduction where a part of an existing organism develops into another organism is asexual.

what are some non-renewable sources of energy?

~ Thanks!

Answers

Answer:

coal, petroleum

Explanation:

they are obtained as dead organic substances fall into swamps and after a long period of time they decay into substances that can be used as fuel after refining process.

Answer:

Non-renewable energy is energy from fossil fuels such as coal, crude oil, natural gas, and uranium.

Explanation:

En la naturaleza existen más de 4000 minerales diferentes conocidos conocidos

Answers

La declaración 'en la naturaleza existen más de 4000 minerales diferentes conocidos' es VERDADERA. Estos elementos pueden ser diferenciados por sus propiedades.

Un mineral es un material inorgánico que se encuentra en la naturaleza, el cual posee una estructura atómica específica, como así también una composición particular.

El estudio de la propiedades físicas y químicas permiten diferenciar los diferetes tipos de minerales que se encuentran en la naturaleza.

Los minerales pueden encontrarse en su estado puro (por ejemplo, oro, plata, cobre) o bien estar combinados con otros materiales para formar diferentes elementos.

Por ejemplo, el cuarzo está formado por la unión del silicio con oxígeno.

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Microevolution occurs when what kind of frequencies change?

Answers

Microevolution is the change in allele frequencies that occurs over time within a population. This change is due to four different processes: mutation, selection (natural and artificial), gene flow and genetic drift.

Help plzz with biology USA test prep.

Answers

Answer:

i cant see it

Explanation:

Why does crab grass do so well when ordinary grass struggles in late summer? Is this a phenomenon ? Or is this based on a scientific principles, what is it that causes crab grass to thrive in relation to the different type of plants ?

Answers

Crab grass does so well when ordinary grass struggles in late summer

because its seed germination is higher when exposed to hotter

temperatures.

The seeds of crab grass are mostly dormant and their germination is

dependent on the soil temperature. During summer, the temperature of the

soil is usually higher which aids its growth .

This therefore explains the reason why crab grass does well than ordinary

grass in late summer periods.

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what type of light (energy) does each light start out as?

Answers

The conversion of light energy into chemical energy is dependent on the substance chlorophyll

briefly describe the nebula theory formation of our solar system use the words protostar and protoplanets in your discussion

Answers

Answer:

Below!

Explanation:

Currently the best theory is the Nebular Theory. This states that the solar system developed out of an interstellar cloud of dust and gas, called a nebula. This theory best accounts for the objects we currently find in the Solar System and the distribution of these objects. The Nebular Theory would have started with a cloud of gas and dust, most likely left over from a previous supernova. The nebula started to collapse and condense; this collapsing process continued for some time. The Sun-to-be collected most of the mass in the nebula’s center, forming a Protostar.

A protostar is an object in which no nuclear fusion has occurred, unlike a star that is undergoing nuclear fusion. A protostar becomes a star when nuclear fusion begins. Most likely the next step was that the nebula flattened into a disk called the Protoplanetary Disk; planets eventually formed from and in this disk.

Three processes occurred with the nebular collapse:

Temperatures continued to increase The solar nebula spun faster and faster The solar nebula disk flattened

The orderly motions of the solar system today are a direct result of the solar system’s beginnings in a spinning, flattened cloud of gas and dust.

Hoped this helped.

[tex]-BrainiacUser1357-[/tex]

how long can you keep a fresh turkey in the refrigerator?

Answers

2 days in the fridge

Discuss the concept of inserting a gene from marine algae into food crops. If researchers are successful in this endeavor, salt water is then an option for food crop irrigation. Discuss possible pros and cons of this idea. This response should be a minimum of 3 paragraphs to discuss all parts of the discussion question. Each paragraph should be a minimum of 5-7 well developed sentences.

Answers

The concept is creating a genetically modified organism, or GMO. This specifically would be done to try to water plants salt water and they could still grow. This is a pro in an area with little to no freshwater available, such as extreme drought. The cons of this is it would kill any other non salt water tolerant plant. Salt building up in the soil would make it so no other plant could grow there in the future, unless it was also made into a gmo. Overall this is not a feasible solution for most areas and most crops.

Damage to the heart muscle because of lack of blood supply is called:

Answers

Myocardial ischemia otherwise known as cardiac ischemia

The Maine Department of Transportation (DOT) has a fleet of roughly 400 plow trucks that are used to control snow and ice on
approximately 8300 lane miles of Maine's state roads. They usually plan on an average of about 30 treatable events in a winter. This
includes the use of rock salt, salt brine and winter sand, a mix of sand and salt. Salt brine is used on roads and bridges prior to a
storm to delay ice and snow from sticking to the roadway and is also used in plowing to fight the buildup of ice and snow throughout
the storm. Rock salt helps keep roads safe when winter storms hit, reducing winter road accidents, but it can also have negative
effects on plant life and aquatic ecosystems. What is something your community can try to reduce the environmental impact of
salting? Select ALL that apply.
A)
Buy more snow plows and use less salt.
B)
Ban all salt based solutions in the state.
C)
Provide incentives to consumers who install snow tires for increased
traction.
D)
Provide tax incentives to municipalities who will install solar panels that
heat water in pipes embedded in the road.
Wet the pavement before applying brine solutions to help the salt adhere
to the road, cutting back on how much they use.
E)

Answers

My community can try to reduce the environmental impact of

salting by:

Provide incentives to consumers who install snow tires for increased traction.Provide tax incentives to municipalities who will install solar panels that heat water in pipes embedded in the road.Wet the pavement before applying brine solutions to help the salt adhere to the road, cutting back on how much they use.

This will help to reduce the concentration of salt which flows into water

bodies and save aquatic life present in them.

It will also help to ensure there are no accidents through the usage of snow

tires.

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Answer:

C, D, E

Explanation:

It was already there but hard to see.

Earthquake and faults​

Answers

Answer:

Hey mate.....

Explanation:

This is ur answer.....

Earthquakes occur on faults. A fault is a thin zone of crushed rock separating blocks of the earth's crust. When an earthquake occurs on one of these faults, the rock on one side of the fault slips with respect to the other. The fault surface can be vertical, horizontal, or at some angle to the surface of the earth.

Hope it helps!

Brainliest pls!

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Looking at the age structure provided. What is the best population control strategy option to deal with this situation?

Answers

Answer:

Empower women. Studies show that women with access to reproductive health services find it easier to break out of poverty, while those who work are more likely to use birth control. Promote family planning. Make education entertaining. Government incentives. One-child legislation.

Explanation:

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