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CBSE Notes 2011-2012 » X-Science-Term2

Our Environment

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.

First link in any food chain is usually green plants because

Multiple choice question

First link in any food chain is usually green plants because

The two basic processes that operate in an ecosystem are

Multiple choice question

The two basic processes that operate in an ecosystem are

Which of the following statements about food chain and energy flow through ecosystem is false '?

Multiple choice question

Which of the following statements about food chain and
energy flow through ecosystem is false '?

An ecosystem is comprised of

Multiple choice question

An ecosystem is comprised of

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