Americans for years viewed the soviet union as technologically inferior. therefore, americans were stunned in the 1950s when the soviets exploded a hydrogen bomb, tested the first intercontinental ballistic missile, and successfully launched

Americans for years viewed the Soviet Union as technologically inferior. Therefore, Americans were stunned in the 1950s when the Soviets exploded a hydrogen bomb, tested the first intercontinental ballistic missile, and successfully launched .

Sputnik

The answer is challenging and taxing because arduous means when something is hard and tiring and the excerpt provides clear detail why that's the answer

The answer is william henry harrison pursued and defeated british forces retreating into canada.