39 questions in Chapter 15 Our Environment - HI MCQ!

In the given food-chain if the amount of energy at the fourth trophic level is 4 kJ, what will be the energy available at the producer level? Grass -> Grasshopper -> Frog -> Snake?

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In the given food-chain if the amount of energy at the fourth trophic level is 4 kJ, what will be the energy available at the producer level? Grass -> Grasshopper -> Frog -> Snake?

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A food chain comprising birds, green plants, fish and man. The concentration of harmful chemical entering the food chain will be maximum in?

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Replacing Plastic cups by paper cups for selling tea on train may be preferred because?

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Which one of the following will undergo fastest bio-degradation?

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Identify the proper food chain?

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The depletion of the ozone layer causes?

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Excessive exposure of humans to UV-ray s results in (i) damage to immune system (ii) damage to lungs (iii) skin cancer (iv) peptic ulcer?

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Accumulation of non- biodegradable pesticides in different trophic levels is called?

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Trophic level in an ecosystem represents?

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