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lukranit [14]
3 years ago
14

What is the MAIN purpose of the Clean Water Act (CWA)?

Biology
1 answer:
Tanzania [10]3 years ago
6 0
The Clean Water Act (CWA) establishes the basic structure for regulating discharges of pollutants into the waters of the United States and regulating quality standards for surface waters. The basis of the CWA was enacted in 1948 and was called the Federal Water Pollution Control Act, but the Act was significantly reorganized and expanded in 1972. "Clean Water Act" became the Act's common name with amendments in 1972.
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True or false?
Vinil7 [7]

Answer:

Explanation:

1. Over time more and more molecules of DCPIP would be decreased by electrons taken from plastoquinone (Pq). This statement is true in the sense that DCPIP is an artificial electronic acceptor which is decreased by taking electrons from plastoquinone.

2.) Water splitting by Photosystem II would occur at higher levels than if the drug were administered without DCPIP. This statement is true.

3.)Events in Photosystem I would occur just as they would in the absence of drug and DCPIP. This statement is false because the drug obstructs the electron transport from plastoquinone to cytochrome B. So the events are abnormal because no protein transfer is involved in this mechanism.

5 0
3 years ago
Phosphorus is usually a(n) ...
GenaCL600 [577]

Phosphorus is usually a limiting factor or element.

<h3>Is phosphorus a limiting element or factor?</h3>

Phosphorus is usually considered a limiting factor or nutrient in aquatic ecosystems, meaning that the available quantity of this nutrient controls the pace at which algae and aquatic plants are produced.

In other words, phosphorus is a limiting nutrient for aquatic organisms. Its supply is usually small compared to available aquatic organisms.

Thus, Phosphorus is usually a limiting factor or element.

Learn more about phosphorus here: brainly.com/question/1357744

#SPJ1

3 0
1 year ago
As Jim lifts a weight heavier than he has ever lifted before, he suddenly drops the weight with a stunned look on his face. With
ehidna [41]

Answer:

a

Explanation:

6 0
3 years ago
1. Define diffusion.
anygoal [31]

Answer:

1) Diffusion is net movement of anything (e.g., atom, ions, molecules) from a region of higher concentration to a region of lower concentration.

2) Osmosis is the spontaneous net movement of solvent molecules through a selectively permeable membrane into a region of higher solute concentration, in the direction that tends to equalize the solute concentrations on the two sides

3) One big difference between osmosis and diffusion is that both solvent and solute particles are free to move in diffusion, but in osmosis, only the solvent molecules (water molecules) cross the membrane.

4)  Molecules tend to move from areas of higher concentration to areas of lower concentration.

I'm sorry, but I don't know how to do part #2. I think it's a lab.

4 0
3 years ago
During sexual reproduction if the cell divides three times, how many "new" cells do you have?
aliya0001 [1]
I think the correct answer is b
3 0
2 years ago
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