What is persistently frozen ground is known as?

Sink holes may eventually for to join a. wide valleys b. zone of aeration c. dripstones d. aquifer

What are some natural resources found in midwest

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.