From 1935 to 2009, the yield per acre for corn has ________ in the United States.
A) slightly declined
B) roughly doubled
C) almost tripled
D) increased more than 6-fold

Question

Quizplus · Accepted Answer

The yield per acre for corn in the United States has increased more than 6-fold from 1935 to 2009, reflecting significant advancements in agricultural practices, technology, and genetics.

From 1935 to 2009, the Yield Per Acre for Corn