I would say excretion since that means the process of expelling waste matter.
Answer:
my classes are also boring
Explanation:
Answer:
Ecological succession may also occur when the conditions of an environment suddenly and drastically change. A forest fires, wind storms, and human activities like agriculture all greatly alter the conditions of an environment.
Explanation:
Answer:
d.
Explanation:
they were needed to reduce carbon monoxide in our environment to sustain fresher air, less pollution and wildlife..
