What is the percentage of photosynthetically active radiation $(PAR)$, in the incident solar radiation.
What is the percentage of photosynthetically active radiation $(PAR)$, in the incident solar radiation.
$(b)$ $50 \%$ Out of total incident solar radiation, about fifty percent of it forms photosynthetically active radiation or $PAR$.
Similar Questions
Which of the following are the essential sources for releasing in the atmosphere?
$I.$ Burning of wood
$II.$ Volcanic activity
$III.$ Combustion of organic matter
$IV.$ Fossil fuels
Choose the correct option
Which of the following are the essential sources for releasing in the atmosphere?
$I.$ Burning of wood
$II.$ Volcanic activity
$III.$ Combustion of organic matter
$IV.$ Fossil fuels
Choose the correct option
$A$ : Detrivores and decomposers hold up a part of nutrients contained in detritus.
$R$ : Immobilised nutrients cannot be available for solubilisation after the death of saprotrophs.
$A$ : Detrivores and decomposers hold up a part of nutrients contained in detritus.
$R$ : Immobilised nutrients cannot be available for solubilisation after the death of saprotrophs.
Assertion : In a food chain, members of successive higher levels are fewer in number.
Reason : Number of organisms at any trophic level depends upon the availability of organisms which serve as food at the lower level.
Assertion : In a food chain, members of successive higher levels are fewer in number.
Reason : Number of organisms at any trophic level depends upon the availability of organisms which serve as food at the lower level.
- [AIIMS 2003]
The percentage of light energy utilized for photosynthesis by higher plants is
The percentage of light energy utilized for photosynthesis by higher plants is
The phytoplankton in the ponds act as
The phytoplankton in the ponds act as