Answer:The coal-fired steam engine was in many ways the key technology of the Industrial Revolution. Steam power was first used to pump water out of coal mines by Thomas Newcomen, who invented the first steam engine that truly worked in 1712. ... Watt had taken Newcomen's design and improved upon it.
Explanation:
Conversely, when sinkholes<span> become plugged, they can cause flooding by capturing surface-water flow and can create new wetlands, ponds, and lakes. Most of </span>Florida<span>is </span>prone to sinkhole<span> formation because it is under- lain by thick carbonate deposits that are </span>susceptible<span> to dissolution by circulating ground water.</span>
Answer:
i think there were alot of ups and downs about them
Explanation:
i really dont want to type my explanation all out
Answer:Black History Month was created to focus attention on the contributions of African Americans to the United States. It honors all Black people from all periods of U.S. history, from the enslaved people first brought over from Africa in the early 17th century to African Americans living in the United States today.
Explanation:
Chicago was discovered in 1830