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NATURAL SETTING
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smooth and level, without higher or lower areas
flat
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act of damaging air, water, or land
pollution
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a very large area of sea
ocean
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to become larger in amount
increase
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an area, often covered with sand or rocks, where there is very little rain and not many plants:
desert
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an area of lower land between two mountains or hills
valley
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a deep valley with very steep sides of rock that usually has a river running through it
canyon
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power that doesn't run out
renewable energy
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a large area of land that is covered with trees
a forest
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having a lot of healthy plants
lush
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water, especially from a river or stream, dropping from a higher to a lower point, sometimes from a great height
waterfall
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a large area of water surrounded by land and not connected to the sea except by rivers or streams:
lake
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air, water, and land
the enviroment
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new and ongoing differences in the planet's weather
climate change
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to become smaller in amount
decrease
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a piece of land that is completely surrounded by water
an island
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a large mass of ice that moves slowly
glacier
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a thick forest with many large plants and tall trees growing very close together, usually in an area that receives a lot of rain
a jungle
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very dry, receiving very little rain
arid
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uses little power
energy-efficient
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very impressive
spectacular
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force that makes machines work
power
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a forest in a hot area of the world that receives a lot of rain
rain forest
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