Question

the four spheres of earth...
are all connected
have nothing to do with one another
dont affect human life
none of these

question 6
1 pts
when living things breathe, they interact with which of earths spheres?
atmosphere
biosphere
geosphere
all of these

Explanation:

The four spheres of Earth (atmosphere, biosphere, geosphere, hydrosphere) are interconnected. When living things breathe (a biosphere activity), they take in oxygen from the atmosphere. The first question's option "are all connected" is correct as the spheres interact. For the second question, breathing directly involves the atmosphere (taking in oxygen, expelling carbon - dioxide).

Answer:

First question: are all connected. Second question: Atmosphere.