Select the correct answer from each drop-down menu.
The rock in the image is marble, which has many layers and is extremely hard. It was formed under high heat and pressure.
example of
Mrock changing into
rock.

A igneous
metamorphic
sedimentary
B igneous
metamorphic
sedimentary

Two people each hold the end of a rope and create waves by moving their arms up and down. this wave is best classified as a transverse wave because a) both the rope particles and the wave are moving in the same direction. b) the wave is moving up and down as the particles of the rope move horizontally. c) the wave is moving horizontally as the particles of the rope move up and down. eliminate d) the wave is moving in a parallel direction with the motion of the person's arms.

Which of the following is true about the speed of light? it depends on the wavelength.

What must be in balance for temperatures to remain constant?