OPTIONS:
[i] fear.
[ii] seeds.
[iii] soil.
[iv] colors.
[v] arms.
[vi] growth.
[vii] tissue.
[viii] food.
Q: Fact 1: When a plant grows , the size of the leaves of that plant may increase. Fact 2: And as they grow, the size of their food is increased. Given the two facts above, leaf size of plants increase as the size or amount of their what increases?
A:
[viii]