Which of the following best describes the velocity of an object ?

a.) 30m/s
b.) 30m east
c.) 30m/s east
d.) 30m? s^2

C.) 30m/s east  

Explanation:

Velocity has a speed and a direction. 30 m/s is a speed, and east is a direction.

answer; i believe the correct answer is (replication is not conservative);

here is the answer

water, ice, acids, salts, plants, animals, and changes in temperature are all agents of weathering. weathering is the breaking down or dissolving of rocks and minerals on earths surface. once a rock has been broken down, a process called erosion transports the bits of rock and minerals away.