1929 america's great depression began with a dramatic crash of the stock market.
Question 1 is C
question 2 is D
China faced a challenge to feed its people, the growing population seemed to have no way of feeding, so China embarked on a policy of achieving self-sufficiency in food, creating an economic reform program that increased productivity in the agricultural sector, surprising many observers when it became a net exporter of agricultural products in 2002.
