How is the
human life in humid continental

Humid continental climate, major climate type of the Köppen classification that exhibits large seasonal temperature contrasts with hot summers and cold winters. It is found between 30° and 60° N in central and eastern North America and Asia in the major zone of conflict between polar and tropical air masses. Along with the continental subarctic climate, the humid continental climate is a primarily Northern Hemispheric phenomena, since landmasses are absent at the significant latitudes in the Southern Hemisphere.

Lipid because of the high percentage of carbon to carbon bonds, which store more energy than other bonds.

That is false even though water expands when frozen nothing changes at all