Answer: a method of procedure that has characterized natural science since the 17th century, consisting in systematic observation, measurement, and experiment, and the formulation, testing, and modification of hypotheses.
Explanation:
The answer is C. i just took the test and i got it right.
The attempt to stop communism from spreading to Greece and Turkey after World War II was due to the Truman Doctrine.
The Truman Doctrine was a law proposed by US President Harry Truman. His goal was to stop the spread of communism (also known as containment). To ensure that Greece and Turkey (which are close to the Soviet Union) did not fall under the control of a communist nation, the US agreed to give $400 million to these countries. The goal was to help these countries recover from World War II as well as develop a political and economic alliance.
A bill becomes law if signed by the President or if not signed within 10 days and Congress is in session. If Congress adjourns before the 10 days and the President has not signed the bill then it does not become law ("Pocket Veto.")
<span>technological advances that lowered transportation costs dramatically</span>
