Q. 9. Consider the following statements with respect to the Aravali hills:
1.The Aravali hills are a part of the Deccan Plateau uplifted due to tectonic activity.
2.It stretches across Rajasthan from Gujarat to near Delhi.
3.They combat desertification by checking the spread of the Thar Desert.
How many of the statements given above are correct?
Explanations –
Statement 1 is incorrect. The Aravali Hills are not part of the Deccan Plateau. They are part of the Indian Shield and were formed through tectonic activity during the Proterozoic Era, resulting from the collision of cratons (Bundelkhand and Marwar cratons). They are among the oldest fold mountains in the world.
Statements 2 and 3 are correct. The Aravali Hills extend diagonally from Gujarat in the southwest to Delhi in the northeast, passing through Rajasthan and Haryana. The range is approximately 692–700 km long. The Aravalis act as a natural barrier, preventing the eastward expansion of the Thar Desert into fertile plains. They also play a role in groundwater recharge and regulating climate patterns in the region.
Source: The Hindu
