What physical processes on earth's surface wear down the land?

What is the difference between the formation and characteristics of intrusive igneous rock and extrusive igneous rock?

Select the best hypothesis explaining why countries may have preferred communism. communism promised jobs after the insecurities of war. communists forced the people to do what they said. communism was fueled by a dislike for democracy. communism provided economic freedom for businesses and workers.

Find the volume of 3, 8 and one third and 10 and 2 over 5