Answer:
The answer is: rice and wheat
Explanation:
The green revolution is a set of new advances that increased agricultural production worldwide,
In the 1960s, improved varieties of wheat and new strains of rice spread quickly across Asia. In addition the expanded use of fertilizers, irrigation and the support for public policies led to a dramatic growth.
northeast has the highest population density
Because of the forty-niner goldrush.
The answer would be where to produce food
False; it's <span>an income level below which income is insufficient to support families or households.</span>