UPSC Exam > UPSC Videos > Geography for UPSC CSE > GC Leong: Lakes and Its Formation
GC Leong: Lakes and Its Formation Video Lecture | Geography for UPSC CSE
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FAQs on GC Leong: Lakes and Its Formation Video Lecture - Geography for UPSC CSE
| 1. How are lakes formed? |  |
Ans. Lakes are formed through various processes such as tectonic activity, glacial movement, volcanic activity, and erosion. Tectonic activity can create depressions in the Earth's crust that fill with water, while glacial movement can carve out basins that become lakes. Volcanic activity can lead to the formation of crater lakes, and erosion can create lakes in areas where water collects.
| 2. What are some examples of famous lakes formed by glacial movement? | |
Ans. Some famous examples of lakes formed by glacial movement include the Great Lakes in North America, Lake Geneva in Europe, and Lake Baikal in Russia. These lakes were formed by the movement of glaciers during the last Ice Age, which carved out deep basins that filled with water as the glaciers retreated.
| 3. How do lakes contribute to the ecosystem? | |
Ans. Lakes play a crucial role in ecosystems by providing habitats for a wide variety of plants and animals. They also help regulate the water cycle by storing and releasing water, which can help prevent flooding and droughts. Additionally, lakes can improve water quality by filtering out pollutants and sediment.
| 4. What are some human activities that can negatively impact lakes? | |
Ans. Human activities such as pollution, deforestation, and overfishing can have a negative impact on lakes. Pollution from agricultural runoff, industrial waste, and sewage can contaminate lake water and harm aquatic life. Deforestation can lead to erosion and sedimentation in lakes, while overfishing can disrupt the balance of the ecosystem.
| 5. How can we protect lakes and their ecosystems? | |
Ans. To protect lakes and their ecosystems, we can implement measures such as reducing pollution through better waste management practices, conserving forests and wetlands to prevent erosion, and implementing sustainable fishing practices. It is also important to raise awareness about the importance of lakes and the need to preserve them for future generations.
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Nov 21, 2024 Last updated |
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