How are humans changing the carbon cycle? Humans are planting more trees to add more oxygen to to the carbon cycle.
Humans are adding carbon to the Earth by over-farming,
Humans are burning carbon and putting it into the atmosphere.

Humans are burning carbon and putting it into the atmosphere.

Explanation:

Humans are not benefiting our atmosphere, it would be better without us but doesn't mean we cant help!

it creates acid rain

the cladogram shown here shows similarities and differences among several classes of vertebrates. anatomically, the four have limb structure as their common ancestor. we might separate the mammals from the other three classes because they a) divergent; do not lay eggs b) identical; are warm-blooded c) varied; a four chambered heart d) homologous; have mammary glands