When a pearl is cut in half and examined under microscope, but its layers can be seen.

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• The word  “scuba: is actually an acronym that comes of  words “self-contained underwater breathing apparatus”.

• Polio, one of a group of spinal inflammations, causes fever and paralysis often resulting in disabled and deformity.

• Most of damage property attributed to the San Francisco earthquake of 1906 resulted from the fire that followed.

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• With animals both human, chewing helps relieve tension.

• The duty of the police is the maintains oflaw and order.

• The planet Mercury rotates slow than any planet except Venus.

• Contrary to popular belief, bananas are grown on the soft stalk of a leafy plant and not on trees with wood trunks.

• At the awards banquet, philanthropist was recognized for his generosity and careful in aiding the poor

• It was Mary Anderson, an amateur invention, who first patented windshield wipers automobiles

• Both a term paper and final exam is often required for a  class

• Because the diamond is the hardest naturally occurring substance, it is used in industry for to cut, grinding, and boring other hard materials

• I would have gone with him to Washington except I had had time.

• First raise your right hand then, you should repeat after me.

• Do you think that  the humans will ever be able to live in other planets?

• Justice is often personified as a blind folded woman to hold pair of scales

• Before the Industrial Revolution come to America, the vast majority of the population had lived in rural area.

• Some children, beforegoing school, go to kindergartens, officially are called nursery schools

• The pleura that cover the exterior of the lungs and the inner walls of the chest cavity is a elastic membrane

• The quality of these recordings __________ not very good.

• Men and women in the Peace Coips work with people in developing countries to help them improving living conditions.