Lithosphere MCQ Question and Answer | Geography MCQ Question

Basalt is the most common type of solidified lava. It mainly comprises of Feldspar, Pyroxene and Plagioclase. The other 3 given option are gems.

Folding is the result of orogenetic force. Orogeny is a mountain building process. Orogenic processes involve severe folding and affecting long and narrow belts of the earth's crust. In contrast to epeirogenic movement, orogenic movement is a more complicated deformation of the Earth's crust.

Igneous rock has formed the Earth's crust. Most of the Earth's Crust is formed of Sial and Sima i.e. (Silica, Aluminium and Silica Magnesium) composition. Both of thes rock types are granitic in nature being of igneous formation (origin).

A shallow platform (600 feet approx.) which is the seaward extension of the continent is called continental shelf. On an average its width is 80 km. The Arctic Ocean has the widest continental shelf.

Slate is not an igneous rock. Slate is a metamorphic rock created by the compression of shale or mudstone under relatively low temperatures and pressures caused by the building up of sedimentary layers above it.

Igneous rock (also called magmatic rock) is formed through the cooling and solidification of magma or lava. Dolomite is a sedimentary rock composed primarily of the mineral dolomite, CaMg(CO3)2.

Granite display standing quartzite zone because these rocks are resistant to all kinds of erosion. Being igneous, granite rock do not get weathered easily. They are highly resistant to erosion. They contain great amount of silica, hence show standing quartzite zone.

Tsunami is a large sea wave caused by an earthquake experienced along the coasts of Japan. An earthquake generates a tsunami if it is of sufficient force and there is a violent enough movement of the seafloor to cause substantial and sudden displacement of a massive amount of water. Tsunami (pronounced soo-NAH-mee) is a Japanese word, and in fact tsunamis are fairly common in Japan.

Structicture and Formation is changed in metamorphic rocks. Due to subduction of rocks to lower levels of Earth's crust they experience high temperature and high pressure due to which their formation and structure changes as they recrystalline.

The Sahara is the World's largest hot desert with an area of about 9,200,000 sq. km. It is located in Northern part of Africa, On the other hand if the polar regions are included then Antarctica is the largest desert in the World.