The 44th President of the United States, Barack Obama
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As the substance melts the particles have a higher chance of colliding with one another and also move much faster than when the substance is solid. This is because the particles have a higher surface area to move around. Also the arrangements of particles are free.
Explanation:
The prime minister generally co-ordinates the policies and activities of the Cabinet and Government departments, acting as the main public "face" of Her Majesty's Government. The Prime Minister is ultimately responsible for all policy and decisions. Some policy decisions are made by the Cabinet.
Answer:
It's because Douglass regarded the Civil War as the fight to end slavery, but like many free blacks he urged President Lincoln to emancipate the slaves as a means of insuring that slavery would never again exist in the United States.