It cause air pollution since there will be high carbon monoxide and dioxide content
From what I remember, c is the correct answer.
Answer:
It would affect all organisms on the planet and the food cycle would be ruined.
Answer:
A, They mapped the land and reached the Pacific Ocean, helping the US set claim.
Add-on:
I hope this helped at all. I'm sorry if its incorrect.
You would be describing its Longitude because longitude lines go up and down.