If all the plants of the world die all the animals will also die due to shortage of
Cold air
water
Food
Timber
Suppose $2000 \mathrm{~J}$ of solar energy is incident on green vegetation. On the basis of $10 \;\%$ law of Lindeman. Identify $A, B$ and $C$
Biological equilibrium is an equilibrium among the
The transfer or energy from organisms to organisms in a natural community establishes
One of the following atoms often limit the primary productivity of an ecosystem
Which of the following in an ecosystem exhibits one-way flow rather than cyclic flow