Solution to Q9 is incorrect. In my humble opinion, Statement 1 is correct.
Explanation : Though I agree that most of the contributions to sea-level rise come from water and ice moving from land into the ocean, but melting of floating ice causes a small amount of sea-level rise, too.
Fresh water, of which icebergs are made, is less dense than salty sea water. So while the amount of sea water displaced by the iceberg is equal to its weight ( Archimedes’ Principle) , the melted fresh water will take up a slightly larger volume than the displaced salt water. This results in a small increase in the water level.
Now if all the icebergs were to melt, they will definitely raise sea level by a few cm. Hail Archimedes !
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4/10 questions answered correctly
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5 of 10 questions answered correctly
Your time: 00:02:24
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Solution to Q9 is incorrect.
In my humble opinion, Statement 1 is correct.
Explanation : Though I agree that most of the contributions to sea-level rise come from water and ice moving from land into the ocean, but melting of floating ice causes a small amount of sea-level rise, too.
Fresh water, of which icebergs are made, is less dense than salty sea water. So while the amount of sea water displaced by the iceberg is equal to its weight ( Archimedes’ Principle) , the melted fresh water will take up a slightly larger volume than the displaced salt water. This results in a small increase in the water level.
Now if all the icebergs were to melt, they will definitely raise sea level by a few cm.
Hail Archimedes !
10 of 10 questions answered correctly
Your time: 00:05:53
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You have completed the test!
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6/10
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7 of 10 questions answered correctly
Your time: 00:03:05
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