Cutting down trees has a negative impact on an ecosystem.
If trees are cut or burned, the carbon is released back into the atmosphere.
Releasing carbon into the atmosphere has a negative impact on an ecosystem.
Releasing what can have a negative impact on an ecosystem?
(1) disease
(2) viruses
(3) A virus
(4) Carbon
(5) tar
(6) toxins
(7) herbicide
(8) vehicles