Snakes generally belong to which trophic level?

Plants capture $............ \%$ of photosynthetically active radiation $(PAR)$.

Given below are two statements.
Statement $I$ - The amount of energy available in an ecosystem increases at each successive trophic level.
Statement $II$ - Transfer of energy from one trophic level to the other follows $10\%$ law.
In the light of above statements, select the correct option given below:

Give differences: Food chain and food web.

Assertion $A$: Heat energy is available for the functioning of a system.
Reason $R$: Some amount of energy is lost during energy transformation.
Which option is correct for Assertion $A$ and Reason $R$?

Which of the following does not show recycling in an ecosystem?