The rock in the picture is pushed over the edge and it begins to fall. Which type of energy conversion is taking place?

From gravitational potential to kinetic energy

Explanation:

There are two types of energy involved in this process:

- Gravitational potential energy: it is the energy possessed by the rock due to its position. It is given by

where

m is the mass of the rock

g is the acceleration due to gravity

h is the height of the rock above the ground

- Kinetic energy: it is the energy possessed by the rock due to its motion. It is given by

where

m is the mass of the rock

v is its speed

At the beginning, when the rock is on top of the cliff, it has GPE (because its height h is non-zero), while being at rest, its KE is zero.

As the rock falls down, its GPE decreases (as the height h decreases), and at the same time, its KE increases (as the speed increases).

So, the energy has been converted from gravitational potential to kinetic energy.

28. evolution

29. environment, survive, offspring  

explanation:

from

explanation:

wind is defined by the direction it blows from.   for example, a wind blowing from north to south is called a northerly wind.