the answer to this problem is c
A homogeneous mixture is not considered a pure substance because it can be separated through mechanical and thermal processes. A pure substance, however, cannot be separated.<span>
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Answer:
B
Explanation:
Photosynthesis only takes place in the light, while cellular respiration takes place in the light and dark.
https://youtu.be/xmfhKbmQhq0
Photosynthesis vs. Cellular Respiration Comparison
<span>I think its made of food oxidation.</span>
Smog is an abiotic factor affecting a biotic factor(s).
This is because smog isn't a living organism so it is abiotic while humans are multicellular organisms so therefore, they are biotic factors.
Smog has a negative effect on many biotic factors.