Hello there!
The Aryans invaded and conquered India in the 1500s BCE (before the common Era).
Answer:1) 3. 1973
2) 3. Saigon
Explanation: In 1973, the United States officially pulled their troops out of the war after 18 years of fighting.
North Vietnam in 1975 closed in on Saigon and bombed it, hence "The Fall of Saigon."
I he best answer is 3 I am 87 percent sure
Without food people became malnourished therefore a decrease of population due to famine so no births and productivity since people were too weak to work.