1. Old Faithful is a geyser in Yellowstone National Park. This geyser erupts when hot water from underground shoots up into the air through an opening in the ground. When this happens, the ground
surrounding the water increases in temperature. What happens to the molecules in the ground when
he temperature increases?

a
More heat molecules combine with the molecules in the ground.

b
The energy of the molecules in the ground decreases.

c
The energy of the molecules in the ground increases.

d
The cold energy of the molecules in the ground decreases.

Please help thanks!!