Lithosphere MCQ Question and Answer | Geography MCQ Question

Pits formed by the deflating action of wind are called Blowouts. Due to wind action in desert lifting and blowing away of a loose material from ground takes place and this lead to a general lowering of land surface known as Blowout or Deflation Hollows.

Peat is the first stage in the formation of coal. Normally, vegetable matter is oxidized to water and carbon dioxide. However, if plant material accumulates underwater, oxygen is not present and so only partial decomposition occurs.

Formation of a rift valley is due to the subsidence of the floor of a river valley.

Aluminum is the most abundant metal in the earth's crust, but it is never found free in nature. All of the earth's aluminum has combined with other elements to form compounds. Two of the most common compounds are alum, such as potassium aluminum sulfate (KAl(SO4)2.

Iceland have over 200 volcanoes, many of them still active. The Land of Ice and Fire, Iceland is a natural wonderland where the freezing forces of glaciers and arctic weather are in constant battle with the explosive heat of the earth. Thousands flock to Iceland to witness its volcanoes and the marvels they have (and continue to) create; during eruptions, even more rush over for their chance to see one of the earth’s most dramatic and beautiful phenomena.

The Comoros are a volcanic group of islands at the northern end of the Mozambique Channel of the Indian Ocean, between Madagascar and the southeast African mainland, about 180 miles (290 km) off the eastern coast of Africa. Comoros, an independent state comprising three of the Comoro Islands in the Indian Ocean, off the coast of East Africa. A fourth island of the Comorian archipelago, Mayotte, is claimed by the country of Comoros but administered by France.

Russia with an area of about 17.1 million sq. km. is the largest country in terms of surface area. In terms of population it takes the ninth place.

Indonesia is an southeast Asian country and is the world's largest Archipelago with nearly 18,000 Islands. Indonesian Archipelago was also known by the name "Indian archipelago".

The Earth is covered with 71% of water and rest 29% is land. Out of this 29%, 1/3rd or 33% of land is covered with deserts. In terms of hot deserts it is Sahara which is the largest desert but in terms of cold deserts Antarctica is the world's largest desert.

Most earthquakes are tectonic earthquakes, which happen when the large, thin plates of the Earth's crust and upper mantle become stuck as they move past one another. They lock together, and pressure builds up. When they finally release, earthquakes occur.