The portion of the atmosphere containing the air we breathe is called the

A. troposphere.
B. stratosphere.
C. biosphere.
D. hydrosphere.
E. ecosphere.


Answer: A

Environmental & Atmospheric Sciences

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Ocean current are affected by global warming because saltier water is _______ and global warming is making tropical waters ___________ salty

Fill in the blank(s) with the appropriate word(s).

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Answer the following statement true (T) or false (F)

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