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CBSE Notes 2011-2012 » IX-Science-Term2

Natural Resources

Marked temperature changes in aquatic environment can affect

Multiple choice question

Marked temperature changes in aquatic
environment can affect

Soil erosion can be prevented by

Multiple choice question

Soil erosion can be prevented by

What happens when rain falls on soil without vegetational cover ?

Multiple choice question

What happens when rain falls on soil without
vegetational cover ?

Oxygen is harmful for

Multiple choice question

Oxygen is harmful for

Total earth's surface covered by water is

Multiple choice question

Total earth's surface covered by water is

Biotic component of biosphere is not constituted by

Multiple choice question

Biotic component of biosphere is not constituted by

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