Which sphere contains the air we breathe? a. atmosphere b. lithosphere c. hydrosphere d. magnetosphere

The answer to this is atmosphere. 

The atmosphere is the layer of air that surrounds the Earth and is comprised mainly of nitrogen and oxygen. 

So that's why the sphere that contains the air we breathe is atmosphere.

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I'm sure the answer is a

Answercounterclockwise rotation about the origin by 180 degrees followed by reflection about the y-axisexplanationthe given figure has verticesrecall that for counterclockwise rotation about the origin, when we rotate figure pqrs counterclockwise through an angle of 180° about the origin, the coordinates will becomenext, we reflect in the y-axis by negating the x-coordinates of the resulting figure to obtain,therefore the correct answer is c