How much of earth's freshwater is found underground? 3% 70% 97% 30%

Blank is a naturally occurring gas that's found in most soils and rocks and can cause lung cancer

Ray lo bisects nlm, lm=18, no=4, and ln=10. what is the value of x?

Aplane cuts a pyramid as shown in the diagram. what is the shape of the cross section? a. a hexagon b. a pentagon c. a square d. a triangle