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Palavras horizontais

1. Chemicals from car exhaust and factories may become air pollution into (9)
3. Extreme weather, such as floods, tornadoes, hurricanes, change the landscape in a (10)
5. A part of the earth that is always changing (7)

Palavras verticais

2. Occurs when bits of rock and minerals are carried away by water, windy, gravity or glaciers (7)
4. A long and very slow process, it breakes rocks and minerals into small pieces (10)
6. Is a naturally formed feature, such as a valley, plain, or hill (8)