Explanation:
2 or 4 does are the most reasonable
The one that isn't considered an aspect of environmental health such as smog<span />
Answer:
See explanation
Explanation:
In the scientific method, you always begin with asking a question. Then, you do research, make a hypothesis, and test that hypothesis based on the initial question. If experimental data does not support your hypothesis, then you can restart by asking a new question, based on what you already know. Hope this helps!
Answer:
RNA always folds into a single helix while DNA always folds into a double helix.
<em>I hope this helps you</em>
<em>:)</em>
