Which term describes the ability of a solid to return to its original shape?

Liquid water turns into water vapor at which step in the water cycle

Idon’t know the answer and i’ve been stuck on it for a while now skskskskks

Antoine manages a number of apartment buildings that use natural gas for heating, cooking, and laundry. the scatter plot shows the correlation between the outside air temperature and antoine's natural gas bill. which type of correlation does the plot illustrate?