Question

What difference seen in agricultural production over the past 30 years

Answer 1

It's because agriculture has changed throughout history. There are currently over 7.3 billion people in the world, with an expected population of over 8.5 billion by 2030 and 9.7 in 2050. ... Over 200 years ago, 90 percent of the U.S. population lived on farms and produced their own food to eat.