U-shaped mountain valleys that may contain rocks that have been polished or appear to have near parallel scratches on the surface are most likely formed by:

Scientists believe that differences in cause hot, plastic-like rock in the asthenosphere to rise toward earth's surface. a. density c. weight b. magnetism d. composition c. conduction. d. density.

Which of the following is an environmental cost of agriculture? a. agronomyb. cash cropsc. pollutiond. crop rotation

Pythagorean theorem what is the value of x? x = 2 sides are 8 and 10