1) natural feature of the Earth’s surface a) landform b) atmosphere 2) the air around the Earth a) landform b) atmosphere 3) all the water on Earth a) hydrosphere b) glacier 4) massive pieces of ice that can move over the land a) hydrosphere b) glacier 5) a plant or animal that has become very rare and may die out a) recycle b) endangered 6) a species that had died out a) sustainably b) extinct 7) to use something again a) endangered b) recycle 8) in a way that avoids running out a) sustainably b) recycle

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