Question Over time the density of salt in surface waters can increase.
What is the cause of this increase?
A. evaporation
B. precipitation
C. condensation

Please Help I Have A Unit Test!
Thank You!!

Velocity is a description of both speed and direction, therefore it - a vector - a force arrow - the same as acceleration - a magnitude

Astone weighing 1.5 kilograms is resting on a rock at a height of 20 meters above the ground. the stone rolls down 10 meters and comes to rest on a patch of moss. the gravitational potential energy of the stone on the moss is joules.

What is the quantity which is measured by the area occupied below the velocity- time graph?