2018
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Three
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Four
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Five
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Six
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Detailed explanation-1: -All total, Greenland and Antarctica have lost 6.4 trillion tons of ice since the 1990s. The resulting meltwater boosted global sea levels by 0.7 inches (17.8 millimeters). Together, the melting polar ice sheets are responsible for a third of all sea level rise.
Detailed explanation-2: -If the Antarctic Ice Sheet melted entirely, it would raise global sea levels by around 200 feet (60 meters).
Detailed explanation-3: -If all the ice covering Antarctica, Greenland, and in mountain glaciers around the world were to melt, sea level would rise about 70 meters (230 feet). The ocean would cover all the coastal cities.
Detailed explanation-4: -In 2021, researchers published a paper in Science Advances noting that previous estimates of impacts may be far too low. Earlier studies of the vast West Antarctic Ice Sheet had estimated that its collapse would cause global sea levels to rise by about 3.2 meters (10.5 feet).
Detailed explanation-5: -Antarctica is losing ice mass (melting) at an average rate of about 150 billion tons per year, and Greenland is losing about 270 billion tons per year, adding to sea level rise.