.What will be the effect of natural calamities like the cyclone Nisarga on prime resources like land and soil? What can be the preventive measures or conservation methods we can adopt?
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Explanation:
It is a recorder because of two co-related factors, these are-
1) The visible difference between ice and water.
2) The obvious relationship between global temperatures and the amount of ice around.
Two factors together shows in an easily graspable way how things are changing.
The extent of the Arctic sea ice in summer has declined by 30% in the past 30 years, and that loss is accelerating (see chart).
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