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Standard XII
Biology
Question

Today ...........% of the total land surface of Earth, covering almost 665 million hectares has been set aside as nationally protected areas.
  1. 10
  2. 65
  3. 49
  4. 20

A
20
B
10
C
49
D
65
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Solution
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Protected areas or conservation areas are locations, which receive protection, because of their recognized natural, ecological and/or cultural values. There are over 161,000 protected areas in the world (as of October 2010) with more added daily, representing between 15 to 20 percent of the world's land surface area.

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