Weather Hazards: Global Atmospheric Circulation

What is the layer of atmosphere closest to the Earth called?

• Exosphere

• Mesosphere

• Troposphere

• Stratosphere

What drives the Global atmospheric circulation system?

• Polar ice caps

• Ocean currents

• Equator solar radiation

• Moon's gravitational pull

At approximately what degrees north and south do you find many of the world's deserts due to high pressure and dry conditions?

• 45 degrees

• 30 degrees

• 90 degrees

• 60 degrees

Which cell is described as the smallest and weakest?

• Ferrel cell

• Hadley cell

• Tropical cell

• Polar cell

What effect causes the deflection of surface winds to the right in the Northern Hemisphere and to the left in the Southern Hemisphere?

• Coriolis effect

• Albedo effect

• Doppler effect

• Greenhouse effect

Where do the trade winds blow towards within the Hadley cells?

• The equator

• The poles

• 30 degrees latitude

• 60 degrees latitude

What forms at the inter-tropical convergence zones?

• High-pressure zones

• Polar ice caps

• Broken line of thunderstorms

• Clear skies

Which cell moves in the opposite direction to the other two cells?

• Polar cell

• Ferrel cell

• Equatorial cell

• Hadley cell

What is the primary reason for the unsettled weather around the latitude of the UK?

• Ocean currents

• Volcanic activity

• Solar flares

• Convergence of cool polar air and warm subtropical air

What is the altitude range of the troposphere above the Earth's surface?

• 20 to 25 kilometers

• 15 to 20 kilometers

• 10 to 15 kilometers

• 5 to 10 kilometers