Successful establishment of a species in a new area is called
Coaction
Reaction
Germination
Ecesis
Vertical distribution of different species occupying different levels in a biotic community is known as
Which are the biotic components of forest ecosystem
Complete the following model of carbon cycle filling $A, B, C, D, E$ and $F$
Which ones are the reservoirs of sulphur and carbon cycles respectively?
If an agricultural field is liberally irrigated for a prolonged period of time, it is likely to face problem of