Answer:
I would believe the mesosphere would be the most difficult layer to breathe. Troposphere is where we are, ov we can breathe here, stratosphere would be hard to breath in as well
Answer:
yo I cannot see the image
Explanation:
(a) very frequent use of something so that it stops being effective; an over-use.
Answer:
2a and -5a
8 and -4
hahahah they are separate from each other
2a and -5a simplifies to -3a
8 and -4 simplifies to 4
Explanation:
hope this helps!
Ecology is the study of the relationship between living organisms and their environment. An ecologist is someone who studies those relationships. An ecosystem is a place, such as a rotting log, a forest, or even a schoolyard, where interactions between living and non-living things occur.
