Which statement is true about a liquid but not a gas

Which of the following descriptions is an example of the curtual diffusion

What does the document of the birtish octopus is an uderlying cause of the world war 1

Two of these describe "federalism." (choose two answers) select one or more: a. the national government absolutely controls all state governments. b. power is shared by the national and state governments. c. state governments exercise absolute power over the national government. d. it is a compromise meant to eliminate the disadvantages of a "unitary" and a "confederate" system.