Endogenic Processes: Tectonic Forces, Volcanism, and Rift Valleys

True,

Narmada river rises in the Amarkantaka hills in Madhya Pradesh. It flows towards the west in a rift valley formed due to faulting. Its length is about 1312 km. This river drains into the Arabian Sea. It flows through the states of Madhya Pradesh, Maharashtra, and Gujarat.

• A Rift valley is a narrow linear depression in the land surrounded by mountain ranges. It is created by a geological fault in earth's crust. The East African Rift valley which runs thousands of km long is the best example of a Rift valley in the world.

• When two plates of earth's crust move apart from each other, a long narrow depression is formed due to the sinking of ground which is called a rift valley eg. east African rift valley. Hence option C is the right answer.
• The rift valley is not formed due to river or aeolian(wind) action. Also, the slope in the rift valley is almost vertical thus very steep hence other options are incorrect.

A rift valley is a lowland region that forms where Earth's tectonic plates move apart, or rift. This is a direct result of tectonic forces, unlike V-shaped valleys (river erosion) or U-shaped valleys (glacial erosion).

The Damodar River flows through a rift valley in the Chota Nagpur Plateau region. This rift valley was formed due to down-warping of the crust.

The Narmada River flows through a well-known rift valley located between the Vindhya and Satpura ranges in central India.

Lonar Lake (A), Toba Lake (C), and Keloed Lake (D) are all volcanic crater lakes. Bhim Tal is a lake in the Kumaun region, but it is not of volcanic origin.

The Wular lake is integral to the hydrological system of the Kashmir valley. India's largest freshwater lake, the Wular lake was formed as a result of the tectonic activity and is fed by the Jhelum river. The lake, along with its marshes, regulates the water levels and offers protection against flooding.