Atmosphere & Weather

Define the term weather.

• Average weather conditions over a 30 year period.

• Day to day changes in atmospheric conditions.

• Average weather conditions over a 20 year period.

• Weather relates to temperature & precipitation.

What type of radiation comes from the sun?

• Longwave

• Shortwave

Put the layers in the atmosphere in the correct order, starting with closest to Earth.

• Stratosphere, Troposphere, Thermosphere, Mesosphere

• Troposphere, Stratosphere, Thermosphere, Mesosphere

• Thermosphere, Mesosphere, Stratosphere, Troposphere

• Troposphere, Stratosphere, Mesosphere, Thermosphere

In which zone does most of the weather occur?

• Troposphere

• Thermosphere

• Mesosphere

• Stratosphere

Which two gases make up 99% of gases in the atmosphere?

• Nitrogen and Oxygen

• Nitrogen and Carbon Dioxide

• Oxygen and Methane

• Ozone and Argon

Greenhouse gases in the atmosphere include...

• Helium

• Nitrous Oxide

• Carbon Dioxide

• Methane

What is the name given to the amount of solar radiation reflected from areas of Earth's surface?

• Albedo

• Alfredo

• Refraction

• Absorption

Surfaces with a high albedo are usually...

• Bright / white / light in colour, for example snowy regions.

• Dark in colour, for example forests or urban environments.

Energy from the sun heats the ground and is the reradiated as longwave radiation. Some of it goes to space, but most is absorbed by gases, which then heat up. What happens next?

• Refection to the clouds

• Scattering in space.

• Counter-radiation. It is returned to the ground.

Not all energy emitted by the sun reaches the Earth. What percentage of energy actually reaches the Earth?

• 24%

• 32%

• 48%

• 65%