Study the food chain given below
maize ? mouse ? weasel ? hawk
The population of hawks over a period of time is represented by the graph shown below.
N
u
m
ber of haw
ks
Time
Which of the following show how the other populations are affected ?
(A)There is a decrease in the population of the weasels.
(B) There is an increase in the population of the maize.
(C) There is a decrease in the population of the maize.
(D)There is an increase in the population of the mouse.
(1) A and C (2) A, C and D (3) A and D (4) B, C and D
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