Physical Geography Online Quiz

Savannah is a large, flat area of land covered with grass, usually with few trees. It is also known as tropical grasslands, which are found to the north and south of tropical rainforest biomes.

The equatorial circumference of Earth is about 40,075 km. However, the meridional circumference (from pole to pole) is about 40,008 km.

Mongoloids people are concentrated in the nearby areas of the Himalayas, e.g. Ladakh, Sikkim, Arunachal Pradesh and other areas of the north-eastern India.

Barometers are used to predict the weather. A barometer measures air pressure. Sudden fall in barometer reading indicates stormy weather. Storms are created when a centre of low pressure develops with a system of high pressure surrounding it.

Mohorovicic Discontinuity is the boundary that separates the Earth's crust from the subjacent mantle at depths of 30–50 km below the continents and 5–10 km below sea level in the oceans.

The sphere of living matter together with water, air and soil on the surface of the earth is known as Biosphere. The biosphere, also known as the ecosphere, is the worldwide sum of all ecosystems.

Granite is a coarse-grained Igneous Rock composed mostly of quartz, alkali feldspar, and plagioclase.

Thus most of the tropical deserts like The Sahara Desert, the Kalahari Desert, West Australian desert, etc. are located on the western margin of the continent. Moreover, these deserts also lie on the leeward side of the mountains and hence the region is also hot and dry.

An equinox is one of the two times of the year (21 March and 22 September) when the amount of daylight and night time hours are just about equal duration.

A pulsar is a highly magnetized rotating compact star that emits beams of electromagnetic radiation out of its magnetic poles.