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CBSE Notes 2011-2012 » X-Science-Term2

Our Environment

Which of the following is an autotroph ?

Multiple choice question

Which of the following is an autotroph ?

Name the process in which a harmful chemical enters the food chain and gets concentrated at each lev...

Multiple choice question

Name the process in which a harmful chemical enters the
food chain and gets concentrated at each level on the food
chain.

In a stable terrestrial food chain, which of the following statements is correct ?

Multiple choice question

In a stable terrestrial food chain, which of the following
statements is correct ?

Interdependence of organisms on other organisms for their sustenance is described as

Multiple choice question

Interdependence of organisms on other organisms for their
sustenance is described as

The total biomass in a terrestrial ecosystem will be greatest for which trophic level ?

Multiple choice question

The total biomass in a terrestrial ecosystem will be greatest
for which trophic level ?

In terms of a food chain or food pyramid, organisms that trap energy such as plants are known as

Multiple choice question

In terms of a food chain or food pyramid, organisms that
trap energy such as plants are known as

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