C and D are units of length or distance.
A is a measured angle.
B is a unit of angular measurement.
Potential energy
potential energy is the stored energy an object has, the bike is not moving and it just sitting on the hill, with the stored energy
All spontaneous processes release free energy
Answer:
Im gonna say it is answer A:) Hope this helps!
Explanation:
Convection is the movement caused within a fluid by the tendency of hotter and therefore less dense material to rise, and colder, denser material to sink under the influence of gravity, which consequently results in transfer of heat
