Answer: Electric - Light Bulb
Explanation: The most important invention changed the life of Americans is <em> Light Bulb of Thomas Edison. </em>
<em></em>
<em>Mark me Brainliest, please.</em>
The Alaska Purchase was the United States' acquisition of Alaska from the Russian Empire in 1867<span> by a treaty ratified by the United States Senate. </span>
<span>When driving downhill, your vehicle will accelerate and start moving fast, due to </span>
