When ice is heated, it melts at ______ and converts into water at this constant temperature. 62
0° C
The amount of heat energy absorbed at constant temperature by unit mass of a liquid to convert into gaseous phase is called the ______. 63
specific latent heat of vaporization
At 4° C, the volume of water is ______. 64
minimum
About ______% surface of the Earth is covered with water. 66
71