Sand or gravel that naturally forms near the Earth's surface is known as aggregate. Option "A" is the correct option among all the options given in the question. Practically aggregate has several type of meanings. In respect to the question given the meaning of aggregate is the combination of several items that are together known as aggregate.
This is FALSE, because Mt. Elbrus is not located in the Ural Mountains. It is located in the Caucasus Mountains.
Answer: Pangea at the time was very cold because as we know today, South America is hot. If they have the same glacial deposits, that means it must have been very cold at one point of Earth's history.