15. According to the U. S. Environmental Protection Agency (EPA), spoils from than 700 miles of streams.

a. subsurface mining

b. mountaintop removal

c. contour strip mining

d. open-pit mining

e. area strip mining

The primary agent of contact metamorphism is

Match the graph type to its description. 1. uses symbols to describe information pie 2. compares different quantities at the same point in time line 3. compares increases and decreases in a quantity over a period of time bar 4. shows the relationship of parts to each other and to the whole pictograph

The process by which liquid water changes into water vapour is called what ?