I think the veins absorb the photons because they're located at the top part of a leaf while the stomata that serves as the leaf's lungs are found at the under side.
What are three freshwater environments?
1(Rivers
2(Lakes
3(Streams
It's biohazard. Also if it's flammable the symbol will show a flame and if it's corrosive it'll show a image with a hand being dissolved or like a spot missing by a liquid being dropped from a tube
when an animal eats plants they could be eating the carbon.
The correct processes and components of the carbon cycle is given in the image attached .