2. Why was the United States flying U-2s over the Soviet Union?

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

The United States was worried about their power and if the Soviets had a bigger military force.

Explanation:

the of atp are the key to its ability to store and supply energy;

phosphate

the phosphate groups of atp are the key to its ability to store and supply energy. atp releases energy when it breaks bonds between its phosphate groups.

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