"Natural ecosystems provide an array of basic processes that affect and support humans."

Question

Which statement does not support this quotation?

a
Trees add to the amount of atmospheric oxygen.
b
Bacterial decay helps recycle matter.
c
Lichens and mosses living on rocks help to break the rocks down, forming soil.
d
Treated sewage is less damaging to the environment than untreated sewage.

Answer 1

d
Treated sewage is less damaging to the environment than untreated sewage. This statement is not directly related to natural ecosystems providing processes that affect and support humans. It is more focused on comparing the environmental impacts of treated and untreated sewage.