Earth

What activity allows humans to go underwater with oxygen tanks and a wetsuit?

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What is the area filled with groundwater called?
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In Wyndham, Australia, it was 90 degrees for how long?
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Which of the following is a nonrenewable resource?
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In terms of weather, what is the land corridor that stretches from Texas to North Dakota called?
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What are mounds of sand that have been windblown called?
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What process helps to break down rocks by wind, air or rain?
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What are the seasonal rains that occur in southeast Asia called?
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What is water treated with to prevent bacteria from growing?
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