Water molecules are not only attracted to each other, but to any molecule with positive or negative charges. When a molecule attracts to a different substance, this is termed adhesion. Think about what happens when you dip one end of a piece of paper towel into a glass of water. The water will climb up the fibers of the paper, getting it wet above the level of the water in the glass.
24 The average age to flee the family nest (although Londoners have to wait an additional year). 27 The average age for women to have their first child. 28 By now, the average sensible Brit has started saving for a pension, according to a survey by Axa insurance. That's earlier than any other nation.
Then say that 20% of the 18-year-olds had a baby, 40% of the 19-year-olds, 50% of the 20-year-olds, and 30% of the 21-year-olds. Adding these up gives 140%, so the average woman in this hypothetical society has 1.4 children in her lifetime. Of course in real life women women are typically having children from ages 17 or 18 up to their 30's, and some have children even younger or older, so there are a lot more than four numbers to add together.