PAR stands for

English

Gujarati

Hindi

12.Ecosystem

medium

$PAR$ stands for

A

Photosynthesis Active Reaction

B

Photosynthesis Absorb Radiation

C

Photosynthetically Active Radiation

D

Photosynthetically Active Reaction

Solution

$PAR$ – Photosynthetically Active Radiation. The sum is the only source of energy for all ecosystems on earth. Out of the total incident solar radiation, only $50\; \%$ of it is photosynthetically Active Radiation $(PAR)$ Plantscapture only $2-10\; \%$ of the $PAR$ and this small amount of energy sustains the entire living world. So, there is unidirectional flow of energy from the sun to producers and then to consumer

Standard 12

Biology

Share

Similar Questions

Energy flow and energy transformations in living systems strictly conform to the

medium

Green plants constitute

medium

The dominant second trophic level, in a lake ecosystem, is

medium

What is maximum in a pond-ecosystem

medium

Consider the following statements concerning food chains.

$I$. Removal of $80\; \%$ tigers from an area resulted in greatly increased growth of vegetation.

$II.$ Removal of most of the carnivores resulted in an increased population of deers.

$III.$ The length of food chains is generally limited to $3$ to $4$ trophic levels due to energy loss.

$IV.$ The length of food chains may vary from $2$ to $8$ trophic levels.

Which two of the above statements are correct?

medium