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CBSE Notes 2011-2012 » IX-Science-Term2

Natural Resources

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

An increase in carbon dioxide content in the atmosphere would not cause

Multiple choice question

An increase in carbon dioxide content in the
atmosphere would not cause

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

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