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CBSE Notes 2011-2012 » X-Science-Term2

Our Environment

A correct food chain is

Multiple choice question

A correct food chain is

Trophic level in an ecosystem represents

Multiple choice question

Trophic level in an ecosystem represents

In an ecosystem, various organisms are linked forming interconnections such a condition is termed as

Multiple choice question

In an ecosystem, various organisms are linked forming
interconnections such a condition is termed as

A food chain comprising birds, green plants, fish and man. The concentration of harmful chemical ent...

Multiple choice question

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

The transfer of energy through a terrestrial ecosystem is depicted by energy pyramids. Which of the ...

Multiple choice question

The transfer of energy through a terrestrial ecosystem is
depicted by energy pyramids. Which of the following
statements is true ?

Name one non-biodegradable waste which may pollute the earth to dangerous levels of toxicity, if not...

Multiple choice question

Name one non-biodegradable waste which may pollute the
earth to dangerous levels of toxicity, if not handled properly.

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