The mountain ranges were natural barriers to invading forces and stopped people from coing into india.
The interior of Australia is called Outback: the correct answer is B.
You can actually solve this question by just understanding that all the other options mention words related to the sea: coral reef, atoll, islands: so they're more likely to be on the shore of Australia, not in the middle.
Answer:
whose lives were at risk if they stayed behind.
Explanation:
By 1974, it became certain that the Republic of Vietnam would fall. Thousand of southern Vietnamese were escaping by sea and air. The Northern Vietnamese troops were at the border of the southern capital of Saigon by April 1975. The President of the United States gave order for the evacuation of U.S civilians and the Vietnamese who were at risk. Around seven thousand people were evacuated by airlifts in the final phase of evacuation called Operation Frequent wind.
Soldiers' morale was low and there was a lack of discipline
