cesariglesias132456 cesariglesias132456

15-06-2021
Biology

contestada

Which of the following processes is not primarily caused by humans?
A. air pollution
B. the greenhouse effect
C. thinning of the ozone layer
D. increased carbon dioxide levels
.

Respuesta :

duynguyen1308 duynguyen1308

15-06-2021

Answer:

D

Explanation:

A,B,C all caused by human. But D is less

Answer Link

nnekaeke123 nnekaeke123

15-06-2021

Answer:

D

Explanation:

from my own understanding,we are not the only ones on this planet there are other animals

Answer Link

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