Answer:c- It will still weigh 15 grams
Explanation:
Given
Fifteen gram of a liquid plastic are frozen in a physical change that increases the volume.
It is certain that the mass of plastic will remain fifteen grams despite the increase of volume as density of the plastic will automatically adjusted to get same mass

I think that a territory could become a state when it reaches a population of 150,000.
I believe the answer is: His second treatise on government explained the social contracy theory of government and led to several revolutions.
According to john locke's social contract, if the government somehow fail to secure the natural rights and will of the citizens, than the citizens should have the power to change the leadership through legal methods. Which can we see in the democratic system today.
The other name for the European Recovery Program, and the one that is more commonly used is the Marshall Plan. This plan had as its objective to boost after-war economy in Europe.
It was offered to many European Countries, but some refused because they were under the influence of the Soviet Union.
Answer:
Sagittarius A* is the name of the black hole region that creates the gravitational force holding the Milky Way together.