Which of these is true of sound waves?

a) they can only move through air.

b) they move in all directions.

c) they can be heard in space.

What is one major role of political parties in u.s. politics

What landform is circled in the map above?

Which of the following statements about early mesopotamian civilizations is false? a. mesopotamia was one of the first places in the world where urbanization occurred. b. mesopotamian civilizations settled between the tigris and euphrates rivers. c. mesopotamia was located in modern-day china. d. mesopotamian civilizations invented the wheel.