23

The natural warmth of the chest makes the menthol vapors pass into the air which is then inhaled. The menthol vapors help clear blocked noses and make breathing easier. But there is still no cure for the common cold. The menthol vapors cannot pass through the skin and go straight to the lungs. The warm feeling they give is comforting but won’t help cure your cold.

25

In 1977 a study of works of art that ranged from cave drawings made in 15,000 B.C. to paintings of the 1950’s found that an overwhelming majority of the people in them were also right-handed, regardless of their race, country, or culture. Yet throughout the history of the human race, some people have been left-handed. Today the proportion of left-handers is 10 to 15 percent of the population worldwide. Why are most people right-handed? And what causes some to be different?

2

Charles Darwin called the castings of this humble creature as the living soil. It will be a great and significant impact for the betterment of our environment if all the do-nothing people in the world raise the crawlers.

25

Nuclear power stations are extremely dangerous even though they are very effective in energy production.

1

The lipoproteins are named according to their degree of density. Those containing the most triglycerides and the least protein are less dense.