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4 questions · timed · auto-graded

Question 13 Marks
Image 
  1. Which region of the world is seen in the picture?
  2. How is it going to be affected by global warming?
Answer
  1. Antarctica and Arctic Poles.
  2. Global warming causes the melting of polar ice-caps with huge chunks of icebergs several kilometers across breaking off from the mainland resulting in an increase in the volume of ocean waters. The increase in the volume of ocean waters will result in rising of sea levels. Countries like Bangladesh, Thailand, and Malaysia and the Southeastern parts of the USA like the States of Florida and Louisiana would be swamped by floodwater along their shores.
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Question 23 Marks
Global warming does not augur well for our planet earth. State at least three reasons to support this statement.
Answer
Global warming is not good for our planet as
(a) It will worsen climate changes leading to food shortages.
(b) Many forms of wildlife are now’ at risk and since climate change and deforestation are causing disappearance of their habitat.
(c) Climate change will cause the melting of polar caps resulting in an increase in the volume of ocean waters.
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Question 33 Marks
State some anthropogenic (man-made) causes of global warming.
Answer
Man-made causes of global warming ‘include burning of fossil fuels, cutting of forests, using refrigerators, air conditioners, aerosols, factories belching smoke, increase in methane content of the atmosphere because of large-scale cattle rearing, expansion of cities and towns.
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Question 43 Marks
How will countries like Bangladesh and Thailand be affected by global warming?
Answer
Climate change will cause the melting of polar ice caps with huge chunks of icebergs several kilometers across breaking off from the mainland. This is already taking place around the Arctic and in Antarctica. The result will be an increase in the volume of ocean waters. Countries like Bangladesh, Thailand, and Malaysia and the Southeastern parts of the USA like the States of Florida and Louisiana would be swamped by floodwater along its shores.
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[3 Mark Question Answer] - Geography STD 7 Questions - Vidyadip