Q. Global warming will cause

A
Rise in level of oceans
B
Decrease in glaciers
C
Reduction in ice caps
D
All of these
Solution:
  • First, as the oceans warm due to an increasing global temperature, seawater expands-taking up more space in the ocean basinand causing a rise in water level.
  • The second mechanism is the melting of ice over land,which then adds water to the ocean.
  • As the Earth warms, the melt line moves upwards so that the glacier melts faster and at the bottom, shortening the glacier and reducing its mass.
  • Changes in the amount of sea ice can disrupt normal ocean circulation, thereby leading to changes in global climate.
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