geomorphology & earth landforms section 10 MCQ Questions & Answers Detailed Explanation

Answer: (c)

The Peninsular Plateau is a vast area stretching over much of India. It consists of undulating land, which is some what higher than the coastal plains to the east and west or the flat Northern Plains of the Ganga and the Satluj.

Answer: (d)

Manganese ores are used for smelting ferromanganese, cast iron and pig iron containing about 1% Mn.

Besides coal and iron ore, the other basic minerals required for the iron and steel industry are manganese, limestone and chromite. Manganese is used in the process of converting pig iron into steel; limestone or dolomite is used in smelting iron ore, and chromite is used as an alloy in steel making.

Answer: (d)

A levee is an elongated naturally occurring ridge or artificially constructed fill or wall, which regulates water levels.

It is usually earthen and often parallel to the course of a river in its floodplain or along low-lying coastlines.

Answer: (b)

Answer: (b)

The Earth is composed predominantly of a large mass of igneous rock with a very thin veneer of weathered material—namely, sedimentary rock. Igneous rocks are formed from the solidification of magma, which is a hot molten or partially molten rock.

Igneous and metamorphic rocks make up 90–95% of the top 16 km of the Earth’s crust by volume.

Answer: (a)

Extensive deserts occur in the western tropical regions of continents because of the effect of both the offshore easterly trade winds and cold ocean currents. Most deserts arise due to atmospheric wind conditions.

Other deserts result from the effects of ocean currents on landmasses, where cool air masses carry fog and mist, but little rain, along coastal regions. The world desert map depicts the location of all the deserts of the world.

They are centred along the Tropics of Cancer and Capricorn. The heart of the tropical desert climate is found near the tropics of Cancer and Capricorn, usually toward the western side of the continents.