How is it that crop yields increased in the decades after world war ii despite the number of farms decreasing? a. the growth of bio-engineering proceeded new types of high-yield crops. b. cotton began to replace corn as the united states' main agricultural export. c. mechanization decreased the number of farmers needed to work land. d. demand for u. s. crops forced more efficient use of existing farmland.

Crop yields increased in the decades after World War 2 despite the number of farms decreasing:

A.The growth of bio-engineering proceeded new types of high-yield crops.

can you tell me what is it

native americans

american indians have appeared on many u.s. coins including the buffalo nickel

benjamin franklin learned a lot about democracy by observing the iroquois indian

the term "indian" originated with christopher columbus. he thought that he had reached the east indies when he landed in america and therefore named the inhabitants indians.

camping

camping can relieve stress and depression

your campfire may be a hazard

long-term campsites include permanent and semi-permanent setups and can lead to closer relationships with neighboring campers

buffalo

buffalo are herbivores and feed on about 60 pounds of plant material and grasses a day.

buffalo are considered to be an adult when they reach 3 years old.

buffalo’s tail can be almost three feet long, and they use it to swap at pesky bugs.