| A | B |
|---|
| Atmosphere | Mixture of gases and tiny particles |
| Air Pressure | greatest at sea level and decrease with altitude |
| Troposphere | layer in the atmosphere where the weather occurs |
| Latitude | affects temperature because the Sun's rays strike at different angles |
| Seasons | caused by Earth's orbit and the tilt of the Earth on its axis |
| Winds | caused by differences in air pressure |
| Global winds | produced by planet-scale pressure differences that occur because of unequal heating of Earth at the equator and poles |
| Jet streams | narrow belts of high-speed wind that blow in the upper troposphere and lower stratosphere |
| Ocean surface currents | redistribute heat by transporting waters far from their source |
| Water vapor | produces humidity, clouds, and precipitation |
| Front | when air masses collide, they meet at a boundry called a |
| Hurricane | a large weather system with winds blowing at least 119 km/hr that forms over the ocean |
| Greenhouse gasses | Energy trapped in the atmosphere by this is what causes the temperature to build up |
