1. ) Lack of animal protein in the human diet is a serious cause of the malnutrition.

2. The firing of bricks and tiles for use in the build industry requires large amounts of fuel.

3. Plants known so adaptogens improve human vitality, eliminating stress, and sustain life in the most arduous conditions.

4. Signals picked up by several antennas would be integrated into one image as if a single antenna had been used, except many.

5. The bunch of roses in the vase, by my bed, have surprisingly remained fresh for more than a week.

6. Hypoglycemia is a condition in which a rapidly drop in blood sugar most often results from an over-secretion of insulin from the pancreas.

7. Absolutely nothing that floats, neither a corked bottle nor a 50,000-ton ships, can escape the effects of water currents.

8. Patients suffer from heart disease, which is one of the major illnesses existing in the western world today, can benefit from laughter.

9. Over the years, technology has made the way we live easier, safer, and more convenient. In many cases, its even made many products more affordable.

10. Each specialized group coins new words: while some of these spread quickly, especially when they are picked up by newspapers, the television and radio media, others of these may become popular only in one city or geographic region.

11. Penicillium is one of the many molds that produces the antibiotics used to control disease.

12. Although the Indians lacking animals, they had the ability to cultivate plants suitable for daily use.

13. All but seven passengers, three crewmen, and a small dog was lost when the ship sank.

14. Asbestos was once considered to be so a useful material that it was used in almost all modern buildings.

15. The galaxy Andromeda is the most distant object visible to observers in the northern hemisphere.

16. His parents moved out of their old house sometimes last year after they had celebrated their fiftieth anniversary there.

17. A deficient if folic acid is rarely found in humans because the vitamin is contained in a wide variety of foods.

18. He was at the bus-stop well on time to catch the 7.30 bus, but had to miss his breakfast to do it.

19. The library she worked in borrowed books, magazines, audio cassettes, and maps to its patrons, who could keep them for four weeks.

20. The body structure that developed in birds over millions of years is well designed for flight, being both lightly in weight and remarkably strong.

21. Unlikely gas sport balloons, hot air balloons do not have nets.

22. In space, with no gravity for muscles to work against, the body becomes weakly.

23. The neo-cortex is, in evolutionary terms, most recent layer of the brain

24. Ralph Waldo Emerson, the writer, stressed the important of individuality and self-reliance

25. Supersonic flight is a flight that is faster the speed of sound.

26. It is a common observation that liquids soak through some materials but not through other.

27. Alois Alzheimer made the first observers of the telltale signs of the disease that today bears his name.

28. Photovoltaics, commonly called “solar cells,” convert sunlight direct electricity.

29. The island of Kauai has much streams, some of which have worn deep canyons into the rock.

30. While the twentieth century, the field of dentistry has developed branches that specialize in the treatment of individual dental problems.