
Basic atmosphere facts.
Strong winds that travel around the world are known as
jet streams
hurricanes
thunderstorms
tornadoes
Jet streams are found
High in the troposphere.
In the middle of the troposphere.
Low in the troposphere.
Jet streams form where
Two cold air masses meet.
Two warm air masses meet.
Warm and cold air masses meet.
Most of the air on Earth is found
High in the troposphere.
Near the surface of Earth.
In the middle of the troposphere.
The atmosphere is mostly made up of
argon
oxygen
other gases
nitrogen
Winds move from
High pressure to low pressure.
Low pressure to high pressure.
Glaciers melting in the North pole
have no effect on ocean currents.
speed up ocean currents.
slow down ocean currents.
Spring happens when direct sunlight strikes
Tropic of Cancer.
The equator.
The Tropic of Capricorn.
The second most common gas in the atmosphere is
oxygen
nitrogen
argon
other gases
Atmosphere at the equator
warms up and moves east and west.
warms up and moves toward the poles.
cools down and moves toward the poles.
cools down and moves east and west.
Convection currents transfer heat in liquids and gases from
warm to cold.
cold to warm.
Winter happens when direct sunlight strikes
the North Pole.
the Tropic of Cancer.
the equator.
the Tropic of Capricorn.