Physical Geography Online Quiz

Tsunami is a Japanese word meaning 'harbor wave', and is sometimes called seismic sea wave.

The troposphere starts at the Earth's surface and extends 8 to 16 km.

Isobars are lines on a weather map that join places that have the same air pressure at a particular time.

A blizzard is a severe snowstorm characterized by strong sustained winds of at least 56 km/h and lasting for a prolonged period of time.

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.

In general, the surface temperature decreases with increasing distance from the sun. Venus is an exception because its dense atmosphere acts as a greenhouse and heats the surface to above the melting point of lead, about 471 degrees Celsius.

About 2.1% of all of Earth's water is frozen in glaciers. About 70% of Earth's freshwater is stored in glaciers.

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.

The ionosphere is said to be responsible for lightning and propagation of radio waves. It is also responsible for ionizing the atmosphere by solar radiation. It is a 48 km to 965 km vertical stretch, which roughly overlaps the thermosphere and the exosphere.

Convectional Rainfall occurs in Equatorial region. It occurs when the energy of the sun heats the surface of the Earth, causing water to evaporate to form water vapour. When the land heats up, it warms the air above it. This causes the air to expand and rise. As the air rises, it cools and condenses.