Tractors first were manufactured on a large scale in the year _____.
All of the following are typical challenges faced by limited-resource farmers except __________.
A limited-resource farmer __________.
Mechanization has greatly increased the number of people engaged in agriculture in the United States since 1950. Please select the best answer from the choices provided.
Biotechnology has contributed all of the following to agriculture except __________.
Irrigation machinery has __________ the amount of irrigated land in the US.
Which of the following is not a factor that is increasing the risk of a widespread famine before 2050?
In 2009, agricultural production in Africa had __________ since 1960.
Which of the following is not a factor that has contributed to agricultural success in the US?
Which statement about agricultural production in Africa is false?
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