Physical Geography Quiz 2

A former tributary glacier valley that is incised into the upper part of a U-shaped glacier valley, higher than the floor of the main valley. Hanging valley streams often enter the main valley as waterfalls. A hanging glacier connects the upper valley to the lower valley.

The temperature at the surface of the Sun is about 5,600 °C. The temperature rises from the surface of the Sun inward towards the very hot centre of the Sun where it reaches about 15,000,000 °C.

Pluto was the planet furthest away from the Sun is coldest. However, due to the IAU's decision in 2006 to reclassify Pluto as a “dwarf planet”.

The troposphere is the lowest layer of Earth's atmosphere, and is also where nearly all weather conditions take place. It contains 75% of the atmosphere's mass and 99% of the total mass of water vapour and aerosols. Troposphere is the warmest because it is closest to the ground, where the heat is coming from.

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 ocean is the most stable ecosystem. It is stable due to its natural liquid nature (saline), dissolved oxygen, light and temperature.

Smog is a form of air pollution. The word “smog” is a combination of the words “​smoke” and “fog.”

A yardang is a streamlined protuberance carved from bedrock or any consolidated or semi-consolidated material by the dual action of wind abrasion by dust and sand, and deflation which is the removal of loose material by wind turbulence.

El Nino is a warm ocean current. El Nino condition occurs when surface water in the equatorial Pacific becomes warmer than average and east winds blow weaker than normal. The opposite condition is called La Nino.

The tundra climate region occurs between 60° and 75° of latitude, mostly along the Arctic coast of North America, Eurasia (Europe and Asia) and on the coastal margins of Greenland.