Adapt their breathing rate due to less air pressure being pushed on them.
Answer:
The US's decision to invade Afghanistan and also Vietnam.
Explanation:
These were both politically driven wars, mainly because of the US not wanting communism to grow in Vietnam and fighting terrorism in Afghanistan.
The US intervened by trying to stop how Vietnam runs it's country politically and by how Afghanistan runs it's country.
Answer:
1.To have income and food
2.in the their some any fishes
3.it differently on side ways home like you
live in forest,river,on farm and othes
sorry but i dont know no.4 beacuse of the region