Lithosphere MCQ Question and Answer | Geography MCQ Question

Moon shaped sand-dunes, formed by wind action are called Barkhans. Barkhans are sickle-shaped and produced by wind action blowing from one direction. Barkhans can also be found on larger rocks and shrubs which act as anchors that hold the central area in place while the tips are blown away by the wind.

Tensional and compressional forces act adjacent to each other, tensional forces are responsible for faults which get deeper and become rift valleys whereas compressional forces are responsible for upliftment of land thus building block mountains. Example: The Death Valley, USA.

Loess soil are formed by wind dust in and around hot desert.Loess is a type of silt which forms fertile topsoil in some parts of the world.

Fjords is not the result of underground water action. The Fiords are also known as Fjords. They are mostly found in higher latitudes. These are the steep sided narrow valleys formed by retreating glaciers. Later on, these get filled by the sea water.

Dykes is a typical feature of volcanic eruption. A dike or dyke, in geological usage, is a sheet of rock that is formed in a fracture in a pre-existing rock body. Dikes can be either magmatic or sedimentary in origin.

A V-shaped valley is a feature produced by youthful river. A V-shaped valley, sometimes called a river valley, is a narrow valley with steeply sloped sides that appear similar to the letter "V" from a cross-section. They are formed by strong streams, which over time have cut down into the rock through a process called downcutting.

A valley with steep, parallel walls along the faultlines, formed by the subsidence of a part of earth's crust is known as Rift Valley. A rift valley is a lowland region that forms where Earth's tectonic plates move apart, or rift. Rift valleys are found both on land and at the bottom of the ocean, where they are created by the process of seafloor spreading.

The average elevation of Tibetan Plateau above sea level is 4 km. The plateau got the elevation of more than 4 kilometers from the mean sea level more than 40 million years ago.

The statements that are correct are The acid lava usually melts at a relatively higher temperature as compared to basic (basaltic) lava and The acid lava solidifies into glass-like sheets and the basaltic lava solidifies into rough surfaces.

The statements that are correct are shale becomes slate through metamorphosis and shale is converted to slate when it is subjected to tremendous pressure and high temperature.