Physical Geography Quiz 3

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.

The Sun is the largest object in our solar system. It is composed of seven layers: three inner layers and four outer layers. The inner layers are the core, the radiative zone and the convection zone, while the outer layers are the photosphere, the chromosphere, the transition region and the corona.

Tundra ecosystems are treeless regions found in the Arctic and on the tops of mountains, where the climate is cold and windy (extreme), and rainfall is scant. Tundra lands are covered with snow for much of the year, but summer brings bursts of wild-flowers. Resident animals have to change what they are hunting and eating as the seasons change (nomadic hoarders).

The trade winds or easterlies are the permanent east-to-west prevailing winds that flow in the Earth's equatorial region. It is defined as steady and persistent winds which blow on the Equatorial side of the subtropical high-pressure systems in both Hemispheres.

Tropical land has maximum biodiversity because rainforests located in tropical regions receive a lot of sunlight. Since there is a lot of sunlight, there is a lot of energy in the rainforest. This energy is stored in plant vegetation, which is eaten by animals. The abundance of energy supports an abundance of plant and animal species.

Mercury and Venus have no natural satellites. Earth has one natural satellite (Moon) and Mars has two tiny natural satellites (Phobos and Deimos).

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

The Earth is covered with 71% of water and remaining 29% is land. Deserts make up about 33% or 1/​3rd of earth's land area.

Insolation is the amount of solar radiation that is received by a planet (Earth). Some of this energy is absorbed or reflected by the atmosphere.

The orbits of the planets are ellipses with the Sun at one focus, though all except Mercury are very nearly circular. The orbits of the planets are all more or less in the same plane (called the ecliptic and defined by the plane of the Earth's orbit).