Question 1: Which one of the following is an artificial ecosystem?
Question 2: In a food chain, the third trophic level is always occupied by
Question 3: An ecosystem includes
Question 4: In the given food chain, suppose the amount of energy at fourth trophic level is 5 kJ, what will be the energy available at the producer level?
Grass ↠ Grasshopper ↠ Frog ↠ Snake ↠ Hawk
Question 5: Accumulation of non-biodegradable pesticides in the food chain in increasing amount at each higher trophic level is known as
Question 6: Depletion of ozone is mainly due to
Question 7: Organisms which synthesise carbohydrates from inorganic compounds using radiant energy are called
Question 8: In an ecosystem, the 10% of energy available for transfer from one trophic level to the next is in the form of
Question 9: Organisms of a higher trophic level which feed on several types of organisms belonging to a lower trophic level constitute the
Question 10: Flow of energy in an ecosystem is always
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