The correct answer would be D His work on gravity.
He developed the theory of universal gravity which we know as the inverse square law. He thought of 3 laws of motion and proved them by using mathematics. he investigated the planets movements.
Answer:The United States is a federal republic in which the president, Congress and federal courts share powers reserved to the national government, according to its Constitution. ... Legislative power is vested in the two chambers of Congress, the Senate and the House of Representatives
Explanation:
Fifth
Obama was the fifth youngest elected president in American history.
The Compromise of 1850 defused a four-year political confrontation between slave<span> and free states on the status of </span>territories acquired<span> during the </span>Mexican <span>American War.</span>
Answer:
In March 2003, U.S forces invaded Iraq vowing to destroy Iraqi weapons of mass destruction (WMD) and end the dictatorial rule of Saddam Hussein. When WMD intelligence proved illusory and a violent insurgency arose, the war lost public support. Saddam was captured, tired, and hanged and democratic elections were held.
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