With reference to Glacial Lake Outburst Flood (GLOF) consider the following statements:1.It is a type of flood that occurs when a glacial lake experiences a sudden and rapid release of water.2.Building a barrier or dam across a glacial lake will entirely eliminate the risk of GLOFs.3.GLOFs are limited to high-altitude regions and do not pose a threat to lowland areas.How many of the above statements are correct?

Q. With reference to Glacial Lake Outburst Flood (GLOF) consider the following statements:
1.It is a type of flood that occurs when a glacial lake experiences a sudden and rapid release of water.
2.Building a barrier or dam across a glacial lake will entirely eliminate the risk of GLOFs.
3.GLOFs are limited to high-altitude regions and do not pose a threat to lowland areas.
How many of the above statements are correct?:

[A] Only one

[B] Only two

[C] All three

[D] None

Answer: A

Notes:

Explanation –

Statement 1 is correct. GLOF is a type of flood that occurs when a glacial lake experiences a sudden and rapid release of water.

Statements 2 and 3 are incorrect. Building a barrier or dam across a glacial lake will not entirely eliminate the risk of GLOFs. However, it can reduce the risk and mitigate the impact of a GLOF if it does occur. GLOFs can occur in any region where glacial lakes are present, and the impact of GLOFs can be felt downstream, including lowland areas.

Source: ForumIAS

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