Condensation and hydrolysis are changes which a solid can undergo to change the phase or identity. Condensation is a phase change that changes vapor to liquid. Hydrolysis on the other hand is the reaction with water that results in the breaking of chemical bonds
Answer: Certain indicators lend clues to this expansion. Wherever we have evidence of family size, families appear to be larger. It does not appear that more babies are being born, but rather that more of them are surviving and people were living longer.
There was no plague or significant famine throughout this period. Generally speaking, this was a period of warm, dry climate through much of Europe, when enormous amounts of new land were brought under cultivation. People did not bring new land under cultivation for no reason. There were mouths to feed and diets improved.
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