I think it's letter B. When an object freezes, such as ice, their molecules will be contracted due to the molecules that looses kinetic energy. When there is a lose of kinetic energy, then the temperature is cold. So the answer is contraction because it causes the molecules to freeze.<span />
Answer:
D. The beginning of the Mongolian tribute empire
Explanation:
This changed the sociopolitical because the mongolians went into to cities so they could build an empire destroying and killing numerous innocent people. I strongly think this is the answer because in Baghdad it was the most civilized became ruins in just a matter of days when the Mongolians came.
In recent time, the aforementioned issues were replaced with
discrimination, slavery and genocide of many Native American. Slavery had been
one of the biggest problems in the United States that had rooted to racial discrimination
and segregation among the citizens of the country as well as it contributes to
genocide to many Native American families that were “civilized” by the current
culture.
Solar energy sources would have the least ecological imoact
