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Glossary

Astronaut: person who can pilot a spacecraft.

Depression: drastic decline in national economy with symptoms like high unemployment, falling prices and decreased business action.

Satellite: manmade object intended to orbit the earth or other celestial body.

Tornado: violent funnel-shaped thunderstorm with rotating high-speed air, reaching speeds of hundreds of miles per hour.

Weather: description and measurement of atmospheric conditions—temperature, air pressure, humidity, wind speeds, etc.

 

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