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unit 11 3+4
| Question | Answer |
|---|---|
| air mass | a large body of air throughout which temperature and moisture content are similar |
| front | the boundary between air masses of different densities and usually different temps |
| jet stream | a narrow band of strong winds that blow in the upper troposphere |
| thunderstorm | a usually brief heavy storm that consists of rain strong winds lightning and thunder |
| hurricane | a sever storm that develops over tropical oceans and whose strong winds are 119 |
| lightning | an electric discharge that takes place between two oppositely charged surfaces such as between a cloud and the ground |
| storm surge | a local rise in sea level near the shore that is caused by strong winds |
| thunder | the sound caused by the rapid expansion of air along an electrical strike |
| tornado | a destructive rotating column of air that has very high wind speeds and that may be visible as a funnel |