What proportion of photosynthetically active radiation do plants capture?
ASixty to ninety per cent
BTwo to ten per cent
CTen to forty per cent
DForty to sixty per cent
Answer & Solution
Correct answer: B. Two to ten per cent
1. Only a small slice of incoming radiation is actually fixed.
2. That slice supports every living thing above the producers.
3. Plants capture only 2 to 10 per cent of the photosynthetically active radiation.
4. This small amount sustains the entire living world.
_Source: NCERT Class XII Biology, Ch 12 'Ecosystem'_
Related questions
Animals whose internal state changes with the surroundings are:In winter cold the human body raises heat by:Sweating cools the body by a process compared to a:In summer heat the human body cools itself by:The constant human body temperature is about:The success of mammals is credited to holding constant their:Animals able to keep a constant internal state are called:Tuna fish are rarely caught beyond latitudes that are: