What is included in the biomass?
(A) producer
(B) Consumer
(C) decomposers
(D) all living beings
What is the source of energy in an ecosystem?
(A) Transformation
(B) construction
(C) stabilization
(D) destruction
Green plants convert sunlight into what?
(A) mechanical energy
(B) chemical energy
(C) physical energy
(D) electrical energy
How does the energy flow in the ecosystem always?
(A) quadrilateral
(B) one directional
(C) Tridirectional
(D) bidirectional
How do various chemical elements flow in an ecosystem?
(A) one directional
(B) vertical
(C) cyclic
(D) Horizontal
At what level does energy always flow in an ecosystem?
(A) from high level to low level
(B) from a high level to a very high level
(C) from low level to high level
(D) to the same level
How much energy is transferred from plants to herbivores?
(A) 10%
(B) 20%
(C) 30%
(D) 1%
Green plants receive energy from the sun but can use only 1% of that for photosynthesis. The herbivore animals in the second trophic level can get only 10% of the total energy from plants.
What is the loss of energy in the ecosystem?
(A) stabilization
(B) pollution
(C) conversion
(D) renewal
What is the major source of energy in an ecosystem?
(A) ground temperature
(B) Surya
(C) Green house gases
(D) Moon
Which is the non-conventional source of energy?
(A) Petroleum
(B) Coal
(C) Solar radiation
(D) Electricity of nuclear power generating stations
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