Answer:
Explanation:
Corn made substantial gains on cotton acreage during the Civil War. ... Improved strains, more scientific cultivation and fertilization, and expansion of irrigation increased yields of corn in Texas from 10 to 25 bushels an acre during the nineteenth and early twentieth centuries to 90 to 120 bushels in 1975–80.
<span>In 1962 Khrushchev announces that they will be supplying Cuba with arms.</span>
they thought they were going to be ffree
For number 5, is D. For number 6, is C. For number 7, is B.