It is A and C.
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These engines were very useful to move machinery in mills, factories, pumping stations and transportationapplications. In the field of transport,steam engines were often used inlocomotives, ships and other land vehicles. Steam machines were of great importance in their application in the field of agriculture.
Answer:
Alarmed over rapid developments in military technology by his Communist rivals in the USSR, President Dwight D. ... High-altitude U-2 spy planes began making reconnaissance flights over the USSR in 1956, giving the U.S. its first detailed look at Soviet military facilitie
