Answer to #1ANS: D
Answer to #2Any three of the following: An engineer designs tractors and other farm and ranch machines; a forester
keeps chain saws and other equipment going; a construction engineer builds processing plants, farm
buildings, and agriculture facilities; an electrician installs climate controls, silo unloaders, and milling
equipment; a soil conservationist works to control soil erosion; a hardware store employee locates
repair parts for agricultural tools and machines; a welder performs repairs on farm machines; and a
mechanic repairs farm equipment and machines.
Answer to #3It allowed food to be stored for a longer time. Produce could be shipped all across the country.
Answer to #4Agricultural mechanics is the selection, operation, maintenance, service, selling, and use of power
units, machines, equipment, structures, and utilities used in agriculture.
Answer to #5Computer-controlled machines and robotics will increase efficiency.
Answer to #6Agricultural mechanics is different in undeveloped countries because they must utilize simple, tough,
reliable small machines to improve agriculture. This is because they have limited resources such as
capital, fuel for internal combustion engines, and a limited amount of trained farmers.
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