The answer is A because the subject is responding to something that is going on outside of it, if that makes any sense :)
Hope this helps! Have a great day!
The raw materials of photosynthesis are, sunlight, water and C02.
I feel like the answer would be A because photosynthesis gives off energy and they don’t produce glucose
Small rivers and streams may join together to become larger rivers. Eventually all this water from rivers and streams will run into the ocean or an inland body of water like a lake.