What proportion of the earth's surface water is freshwater found in streams, lakes, wetlands, and ground-water reservoirs?

In which horizon of soil profile is prevent material usually found

Most of the volcanic activity that occurs in the ring of fire is a result of the a. formation of mantle plumes away from plate boundaries. b. subduction of one plate under another. c. movement of two plates away from each other. d. sliding of one plate past another.

Can some one me to write a paragraph about the important natural resource to canadians, i need .