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CBSE Notes 2011-2012 » IX-Science-Term2

Natural Resources

Oxygen is returned to the atmosphere mainly by

Multiple choice question

Oxygen is returned to the atmosphere mainly by

Low visibility during cold weather is due to

Multiple choice question

Low visibility during cold weather is due to

Growth of Lichens on barren rocks is followed by the growth of

Multiple choice question

Growth of Lichens on barren rocks is followed by
the growth of

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 ?

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