Which of the following will increase in number if predator is hunted?
a) human
b) plants
c) its prey
d) all of these
Migration may alter the structure of already settled……..
a) species
b) community
c) population
d) ecosystem
Positive Impact of Human on Ecosystem:
Which of the following are associated with balanced ecosystem to which human access to?
a) clean air
b) clean water
c) fertile land
d) all of these
To save our planet, what measure should be taken?
a) reforestation
b) afforestation
c) control pollution
d) all of these
……..is the plantation of trees where already existing forest has been destroy by some cause.
a) Reforestation
b) afforestation
c) gardening
d) deforestation
