Respuesta :

natetrinca

Answer:

a,d,e

Explanation:

its a,d, and e because clean air keeps us alive and other organisms need it to stay alive

Scungy

Answer:

B Air pressure is created by the weight of the atmosphere pushing on Earth’s surface

D Denser air is heavier than less dense air.

E Air is less dense at higher altitudes.

Explanation:

Hope this helps you and you pass your test good luck:D

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