Humans have once settled in areas that are now covered in glaciers.
The Pangaea Earthquake.
The Green House Effect.
1. Coal is in the underground and we have to dig it out. Water is always there and circulating. Wind and Solar are things that have and will exist for a long time. We can use them and cycle them
Answer 360
Explanation:
all i did was 120 multiplied by 3 e enjoy ;))) eheewuf[wgrg
Primary sources can be described as those sources that are closest to the origin of the information. They contain raw information and thus, must be interpreted by researchers. Secondary sources are closely related to primary sources and often interpret them.
Answer: B
Explanation: Good luck! :D
