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CBSE Notes 2011-2012 » IX-Science-Term2

Natural Resources

The difference between nitrogen fixation and nitrification is that

Multiple choice question

The difference between nitrogen fixation and
nitrification is that

The difference between an oxygen molecule and an ozone molecule is that

Multiple choice question

The difference between an oxygen molecule and an
ozone molecule is that

The atmosphere of the earth is heated by radiations which are mainly

Multiple choice question

The atmosphere of the earth is heated by radiations
which are mainly

If there were no atmosphere around the earth, the temperature of the earth will

Multiple choice question

If there were no atmosphere around the earth, the
temperature of the earth will

What would happen, if all the oxygen present in the environment is converted to ozone ?

Multiple choice question

What would happen, if all the oxygen present in
the environment is converted to ozone ?

One of the following factors does not lead to soil formation in nature

Multiple choice question

One of the following factors does not lead to soil
formation in nature

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