Will mark as
which of the following processes formed the andes mountains.
a. glaciers deposited sediment.
b. plates converged together to form the mountains.
c. plates pulled apart and released magma.
d. sand dunes hardened and became rock.

An old movie poster used a quote "in space, no one can hear you scream! " why this is true or not true? a) the quote is incorrect, you can hear sound in outer space. b) sound cannot be polarized. so, you cannot hear sound in space. c) sound is an electromagnetic wave and needs no medium to travel through. eliminate d) sound needs a medium for the wave to vibrate and there is nothing in space to vibrate