Q. With reference to the Glacial Lakes Outburst Flood (GLOF), consider the following statements:
1.GLOF is primarily caused by the heavy rainfall in mountainous regions.
2.Formation of moraine-dammed lakes increases the risk of GLOFs in glacial regions.
Which of the statement(s) given above is/are correct?
Answer: B
Notes:
Explanation –
Statement 1 is incorrect. GLOFs are caused by the failure of natural dams (composed of ice or moraine) that hold glacial lakes, which can be triggered by factors like ice avalanches, earthquakes, or rapid glacier melting.
Statement 2 is correct. The formation of moraine-dammed lakes increases the risk of GLOFs, as these dams are made of loose rock and debris, making them unstable and prone to failure.
Source: AIR
