Alarge deposite of sediment that occurs at the mouth of a river due to a sudden change in elevation is called ?

In the following diagram, four different index fossils are labeled: which of the labeled fossils comes from the oldest organism? a b c d

Which is not part of the definition of a family? two or more related people living together being married or in a partnership a single person living alone choices a and b

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.