Answer:
230?
Explanation:
From what I found, the answer is 231, I'm assuming that the 231 in the question was a typo...
Our knowledge of a lot of things is most likely to change...because if there is new discoveries and better technology ..then scientist will most likely find out things that they didn't know before....hope this helps!
A- cant be awnserd i think u forgot to post a picutre
Answer:
polution
Explanation:polution warms air causing cabon dioxide
They show regions with the same altitude above sea level.
