Answer:
B. photosynthesis and respiration keep the levels of oxygen and carbon dioxide fairly constant in the atmosphere.
Explanation:
Answer: My life is so hard, I have to WALK to school in the Rain every single day. You think that's Bad I have to walk in the pollution, Which hurts people lungs.. They're is nothing else to say but pollution is one of the top Priority's that are causing the earth to die.
Something like that make feedback about a ad cause on the earth or a good one and turn it into a negative thing.
I think the answer is a because it is losing mass do to it melting not completely sure tho
The products of photosynthesis has reactants and products
In photosynthesis for products there are rubp which is technically glucose and oxygen. So your answer would be number 4
The other ones listed are classified as reactants