Select all the correct answers. For what two reasons do countries specialize? A. Countries specialize so that opportunity costs can be increased. B. Countries specialize to excel in the production of specific goods and services. C. Countries specialize to make the most efficient use of their unique set of resources. D. Countries specialize to increase the number of their imported products.​

Click on  the link  to view information gathered by the organization keep america beautiful. read "the costs of american littering" to find three negative effects of litter in local communities.  based on your research, what are the negative effects of litter in local communities? check all that apply.litter cleanup is very expensive.litter has decreased since 1969.litter is a constant community problem.litter causes property in the community to be less valuable.litter contaminates water and has other environmental consequences.

What does the term mandate” mean in terms of civil rights and liberties?

Calculate the iq of a 20 year old who has the mental age of 25