Small amount of energy sustains the entire living world is only ……………………… of the PAR.
A. 20-25%
B. 10-15%
C. 2-10%
D. 1-2%
Answer:C
Small amount of energy sustains the entire living world is only ……………………… of the PAR.
A. 20-25% B. 10-15% C. 2-10% D. 1-2%