Which will melt more ice when placed on its surface, a kilogram of wood or a kilogram of iron of the same high temperature?
A) 1 kg of wood.
B) 1 kg of iron.
C) both the same
D) neither of these
Question 2
When water vapor changes phase to become water in a cloud, the surroundings become
A) cooler.
B) warmer.
C) both of these
D) neither of these