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प्रश्न
What percentage of sun's energy falling on the leaves of green plants is utilised by the plants in the process of photosynthesis and stored as chemical energy of food?
(a) 99 per cent
(b) 10 per cent
(c) 1 per cent
(d) 20 per cent
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उत्तर
1 per cent
Only one per cent of the sun's energy falling on the leaves of green plants is utilised by the plants in the process of photosynthesis and stored as the chemical energy of food.
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संबंधित प्रश्न
List two biotic components of a biosphere.
Why are green plants called producers?
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At which trophic level a person is feeding when he is eating apple.
The sea water contains water beetles, tadpole, fish and weeds.
Which organisms can trap solar energy to make food?
What would happen to the number of rabbits and grass plants if the number of foxes decreased?
What would happen to the number of grass plants and foxes if the number of rabbits decreased?
In a food chain consisting of grass, frog, bird and insects, where will the concentration of the harmful chemicals be maximum?
Fill in the following blank with suitable word :
Pesticides enter the food chain at the ...........level
Which common pesticide has accumulated in human body in considerable amounts?
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What provides the energy which then flows through a food chain?
(a) glucose
(b) oxygen
(c) respiration
(d) sunlight
An aquatic food chain comprises of the organisms like tadpoles, weeds, fish and water beetles. The organism which gets the minimum energy through this food chain is :
(a) water beetles
(b) tadpoles
(c) weeds
(d) fish
In addition to wheat plants, a crop field ecosystem has organisms such as snake, peacock, eagle and mice. If the wheat plants are sprayed with pesticides periodically, which of the following will have the minimum concentration of pesticides in the body?
(a) snake
(b) eagle
(c) mice
(d) peacock
The harmful chemical which is accumulating in human beings through food chain is :
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(b) dichlorodiphenyltrichloroethane
(c) chlorofluorocarbon
(d) abscisic acid
Arrange the following in a correct sequence and form a food chain
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Arrange the following in a correct sequence and form a food chain
Human → Insect → Algae → Fish
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