The average salt content of seawater is more than three percents

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• To his surprise the engine started by the very first try.

• From archeological evidences, we know that Egyptians were highly organized and civilized. Moreover, they were skillful in using crafts.

• Many scientists contributed to the development of television, whether no one can be said to have invented it.

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• I’m just going to the shops; if anyone rings, tell them I will be back for a few minutes.

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

• Abraham Lincolns boyhood home resembled those of many others midwestern pioneers, with its dirt floor, sleeping loft, and crude fireplace.

• Since the Great Depression of the 1930’s, social programs such as Social Security have been built into the economy to help avert severity business declines

• Not everyone believes that ..................technology has improved .................. quality of people's lives. 

• When I walked into my office, I found Tom was using my telephone

• Jack London, whom was known for his stories of Alaska, lived there during the Klondike gold rush.

• The graphics ability of a computer depend on the speed of its processor and the size of its RAM

• Choose the correct answer to complete the sentence. "Global warming occurs when the greenhouse gases in the atmosphere trapthe heat_______ the sun"

• Although she is 103 but, she still does a lot of work in the flat.

• Choose the best option:

  Certain chemicals have been banned because of their damaging effect on the environment.

• It’s been brought to my attention that there has been a number of thefts from the office.

• Humus is formed during soil microorganisms decompose animal and plant material into usable elements by plants 

• One of the most difficult questions in defining sleep is “What are the functions of sleep?”

• When contented and occasionally when hunger, cats frequently make a purring sound

• The diary it was kept secret until the end of the war in fear of reprisals by the occupying army.

• Thanks to a considerable number of material data, we know pretty much about ancient Egypt, but few historical records of Babylon are available.