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tigry1 [53]
4 years ago
14

What did the Clean Air Act of 1970 permit U.S. citizens to do for the first time?

Biology
1 answer:
vaieri [72.5K]4 years ago
8 0
I think B is the answer The Clean Air Act That prevented air pollution and protected the ozone layer as well as promote public health. This act gave Enviromen. Protection Agency the power to take effective action fighting environmental air pollution
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What do biologists ask questions about and study using scientific process?
MrRissso [65]

d. the living world. Biologists need to use the living world in order to back up the scientific method.

4 0
3 years ago
Read 2 more answers
1. A muscle or skin cell is an example of a​
guajiro [1.7K]

Answer: a worm ahaha thanks for the points dummy

Explanation:

4 0
4 years ago
One of the "triggers" proposed for the Cambrian explosion is a dramatic rise in oxygen concentrations that occurred in the ocean
ZanzabumX [31]

Answer:

1. Oxygen is an effective final electron acceptor in cellular respiration because of its high electronegativity.

2. Organisms that use it as a final electron acceptor can produce more usable energy than organisms that do not use oxygen, but only if it is available.

3. With more available energy, aerobic organisms can grow larger and move faster.

Explanation:

1. Cellular respiration is an aerobic pathway because oxygen is an electron acceptor. This process produces 38 molecules of ATP per glucose. The atomic elements that are positioned at the right of the periodic table have high electronegativities because they tend to be electron acceptors.  

2. The efficiency of energy production of aerobic respiration is much higher compared to the anaerobic respiration because this metabolic pathway (aerobic respiration) can produce 38 molecules of ATPs per glucose molecule, while anaerobic respiration produces only 2 ATPs by glucose.

3. A higher amount of available energy improves the metabolic profile of the organisms with aerobic respiration.

3 0
3 years ago
The building blocks of DNA are like alphabet letters, because they:
timurjin [86]

Answer:

The letters of DNA pair up because they form hydrogen bonds: each contains hydrogen atoms, which are attracted to nitrogen or oxygen atoms in their partner

Explanation:

8 0
3 years ago
What is the answer to number 2? Please help! :)
Kay [80]

For each of the examples, simple diffusion, carrier, and channel mediated, each type involves the flow down a concentration gradient. This means that the molecules flow from an area of high concentration to an area of low concentration. In turn, this allows for a passive process, meaning no ATP is needed! I hope this explains your question.

7 0
4 years ago
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