Answer:Phase change materials (PCM) are substances that absorb and release thermal energy during the process of melting and freezing
Explanation: when it cools it changes like ice melting
They call it the World War because 1914-1918 was the first of a particular type of international conflict the world's first industrialised "total" war - which had been followed by a second industrialised world war of this kind - 1939-1945.
Answer:
Two Executive Orders
Explanation:
The President’s Committee on Civil Rights was established by Executive Order 9809 in December 1946 and it aimed to safeguard the American people’s rights. The Committee conducted inquiries, held public hearings, solicited advice from multiple organizations, examined evidence and at the end, made a few recommendations. These recommendations resulted in two executive orders that desegregated the armed forces and ended discrimination in the Civil Service System.
False.....hope it helped :)
