Which arrows represent carbon dioxide entering the atmosphere by cellular respiration?

It's the arrow going up from the animal and the arrow in Going up from the tree. The answer should be 2 and 4

2 and 4

Explanation:

Just took the test :) Hope this helps anyone in the future :)

The answer is atmosphere. there are four spheres of the earth: 1. geosphere (from greek word 'geo' = ground), 2. hydrosphere (from greek word 'hydro' = water), 3. biosphere (from greek word 'bio' = life), and 4. atmosphere (from greek word 'atmo' = air). a magnetosphere is a region of space around astronomical objects controlled by the magnetic field of that object. through the process of elimination, since lightning is present in the air, it can be found in the atmosphere.