Q. Consider the following statements:
1.Moraine is a type of ice formed from compacted snow in a glacier.
2.When glaciers melt and retreat, they leave behind large holes that fill with water, forming glacial lakes.
3.Pangong Tso is glacial lake in the disputed zone between Ladakh and China.
4.Glacial lakes act as hydrological buffers as they regulate or interrupt the flow of water from melting glaciers.
Which of the statements given above are correct?
Explanation –
Statement 1 is incorrect. Moraine is not a type of ice but rather the collection of debris (like rocks and soil) that glaciers gather and deposit as they move. Moraine includes materials that are left behind after a glacier recedes, forming various types of landforms, such as lateral and terminal moraines.
Statements 2, 3 and 4 are correct. As glaciers melt and retreat, the depressions they leave can fill with water, creating glacial lakes. These lakes are often dammed by the moraines left at the glacier’s edge. Pangong Tso is a high-altitude glacial lake located in the disputed area between India’s Ladakh region and China. Glacial lakes act as hydrological buffers, meaning they regulate or interrupt the flow of water from melting glaciers.
Source: The Hindu
