How are green plants typically toned?
What will be an ideal response?
Question 2
In a typical mineral soil in optimal condition for plant growth, approximately what percentage of the pore space would be filled with water and what percentage filled with air?
A) 50 water and 50 air
B) 25 water and 75 air
C) 10 water and 90 air
D) 25 water and 25 air
E) 90 water and 10 air
