geomorphology & earth landforms section 7 MCQ Questions & Answers Detailed Explanation

Answer: (b)

The Himalayas, lying in Indian territory, is spread over a length of about 2,500 km and a width of 220 to 300 km.

It covers partially/fully twelve states/provinces of India viz., Jammu & Kashmir, Himachal Pradesh, Uttarakhand, Sikkim, Arunachal Pradesh, Nagaland, Manipur, Mizoram, Tripura, Meghalaya, Assam and West Bengal.

Answer: (a)

Metamorphic rocks are rocks that have “morphed” into another kind of rock. These rocks were once igneous or sedimentary rocks.

How do sedimentary and igneous rocks change? The rocks are under tons and tons of pressure, which fosters heat build-up, and this causes them to change. If you exam metamorphic rock samples closely, you’ll discover how flattened some of the grains in the rock are.

Answer: (c)

Answer: (b)

The Grand Canyon is a steep-sided canyon carved by the Colorado River in the United States in the state of Arizona.

It is contained within and managed by Grand Canyon National Park, the Hualapai Tribal Nation, and the Havasupai Tribe. President Theodore Roosevelt was a major proponent of the preservation of the Grand Canyon area. A number of processes combined to create the views that we see in today’s Grand Canyon.

The most powerful force to have an impact on the Grand Canyon is erosion, primarily by water (and ice) and second by the wind. Other forces that contributed to the Canyon’s formation are the course of the Colorado River itself, volcanism, continental drift and slight variations in the earth’s orbit which in turn causes variations in seasons and climate.

Answer: (d)

Answer: (c)

Anything above, 600 m (2000 ft) can be regarded as an amount of mountain. Hill is smaller than a mountain but no specific definition for absolute elevation.

On the basis of HEIGHT: Low mountains: Height ranges between 700 - 1000m Rough mountains: Height-1000m - 1500m Rugged mountains: Height-1500 - 2000m High mountains: Height above 2000m.