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CBSE Notes 2011-2012 » X-Science-Term2

Our Environment

The difference between biodegradable and nonbiodegradable substances is

Multiple choice question

The difference between biodegradable and nonbiodegradable
substances is

In the garden ecosystem, which of the following are producers ?

Multiple choice question

In the garden ecosystem, which of the following are
producers ?

Which of the following groups contains only biodegradable items ?

Multiple choice question

Which of the following groups contains only biodegradable
items ?

Ozone layer is destroyed due to

Multiple choice question

Ozone layer is destroyed due to

Which of the following constitute a food-chain ?

Multiple choice question

Which of the following constitute a food-chain ?

Ozone blanket is present in which of the follow ing main layers of atmosphere ?

Multiple choice question

Ozone blanket is present in which of the follow ing main
layers of atmosphere ?

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