Answer:
PH
Explanation:
When pH of a solution is less than 7 then the solution is considered acidic in nature. Whereas when pH of a solution is more than 7 then the solution is considered basic.
They color you see is the color that is reflected. Color is visible light. And red has the longest wave length. While violet is the shortest.
Explanation:
The air spaces within the leaves help in exchange of gases and also help in transpiration