A change in velocity (speed and/or direction) is... A. speed
B. velocity
C. acceleration
dD. none of the above

Which sentence best describes the formation of igneous rock? a- lava on the surface dries up and makes arock b_melted rocks cools and forms crystals c_rocks under tremendous heat and pressure d_magma is melted rock underground

Melissa is interested in her family tree and how her family has changed over its many generations. melissa probably more closely resembles

About 3% of the water on earth is freshest. only about 40% of that freshwater is available for human use. why is so much freshwater unavailable for human use?