Suppose $2000 \mathrm{~J}$ of solar energy is incident on green vegetation. On the basis of $10 \;\%$ law of Lindeman. Identify $A, B$ and $C$
$A-20 \mathrm{~J}, \mathrm{~B}-2 \mathrm{~J}, \mathrm{C}-0.2 \mathrm{~J}$
$A-200 \mathrm{~J}, \mathrm{~B}-20 \mathrm{~J}, \mathrm{C}-2 \mathrm{~J}$
$A-400 \mathrm{~J}, \mathrm{~B}-40 \mathrm{~J}, \mathrm{C}-4 \mathrm{~J}$
$A-40 \mathrm{~J}, \mathrm{~B}-4 \mathrm{~J}, \mathrm{C}-0.4 \mathrm{~J}$
The rate of decomposition is faster in the ecosystem due to following factors $EXCEPT$
Which of the following trophic levels are occupied by sparrow?
Why are oceans least productive ?
Distinguish between
$(a)$ Grazing food chain and detritus food chain
$(b)$ Production and decomposition
Which one of the following has the largest population in a food chain?