How did the domino theory influence the United States' role in the Vietnam War?

Responses

Vietnamization became the new U.S foreign policy
The United States adopted a position of neutrality.
It forced the United States to support the Vietcong.
It convinced the government to become involved in war.

Which population and environmental issues are affecting the economy of Indonesia?

Responses

overcrowding and drought.
declining population and air pollution.
declining population and water pollution.
overcrowding and destruction of forests.

Why did the first inhabitants of mainland southeast asia settle in plains and river valleys?

Responses

Those areas were easy to defend
Those areas were good for farming
Those areas were best for trade
Those areas were close to towns

and other settlements