... is cause by a smaller family of viruses compares to the more severity of influenza, which is caused by more than 200 virus. Virtually finding a vaccine for the flu is very simple, but finding a vaccine for influenza is virtually nil. Another cause of the is the Antibody for specific virus. Dr Stone thinks that the accumulation of stress tips the infected person over into illness. In his study of 72 married white men for a period of 12 weeks, in which they kept daily diaries of their stress. Researchers then measured the subjects' saliva for a substance called secretary immunoglbulin-A antibody, the less they had o ...

... is considered a chemical energy. Fuel can take the form of gases, solids or liquids. When fuels combine with oxygen from the air, they release their stored energy as heat. We recognize this process as burning. The individual relies on food for fuel which contains energy©giving substances that our bodies can store until we need this energy to use our muscles. When we do use our muscles within us, we may not always be sure that heat is given off. Our bodies do not burst into flames but the perspiration on our skin is a clue to what is happening. The movement of the windsurfer has a different explanation ...

... The metal of oxidizes very easily and should be kept under petroleum or other suitable oxygen-free liquids to exclude air. is used mostly with other elements. It is used in metallurgy, and its some of its compounds are used in pyrotechnics, and petroleum mining. Another one of its uses is as a getter in vacuum tubes. ’s sulfate is used in paint and in glassmaking. Barite is extensively used as a weighing agent in oilwell drilling fluids. The carbonate has been used as a rat poison, while nitrate and chlorate give colors in pyrotechny. The impure sulfide of radiantly glows after exposure to the ligh ...

... You are near a white picket fenced farm with big cottonwoods shading it from the scorching sun. You have just visited a collective farm in the Soviet Union, a Masai village in Africa and Abilene, Kansas, which is located in the U.S. These three places are part of the world’s mid-latitude grassland region. Grasslands are usually found in the interior parts of most continents. The world’s grasslands are vast areas covered with grass and leafy plants. They generally have a dry climate, little vegetation, and most grasslands receive only about twenty to thirty inches of rain each year, with most of it coming ...

... because they are multi-cellular complex creatures (animals), and not plants, fungi, and bacteria, they are classified as Animalia. And because relatively large bodies, this phylum has evolved efficient internal plumbing along with other specialized systems such as well developed open circulatory system, a complete digestive tract, along with excretory and nervous system, they are classified under the Mollusca phylum. It then goes under the classification of Cephalopod along with squids and chambered nautilus. From there it is ordered as Octopoda, (Family) Octopodidae, (Genus) Octopus. Then its species differ t ...

... originated in southern Asia. A very few can still be found there and in Asia, but today most s live on the vast plains of Africa. There, they have plenty of room to run and keep track of their prey. At the same time, the tall grasses provide the cover to hunt successfully. territory is also likely to include lightly wooded areas where the s can rest safely and keep their cubs out of harm's way. The parry grass helps the in several ways it is one of the best objects to hide in for attack on other pray. It is also a good bedding source. The s cubs love to romp around in the grass for play and for practice for battle ...

... are essential tools in almost every field of research and applied technology, from constructing models of the universe to producing tomorrow's weather reports, and their use has in itself opened up new areas of conjecture. Database services and computer networks make available a great variety of information sources. The same advanced techniques also make possible invasions of privacy and of restricted information sources, but computer crime has become one of the many risks that society must face if it would enjoy the benefits of modern technology. Imagine a world without . That would mean no proper means of commun ...

... and from mountains, deserts, plains, and facts to open oceans and deeply urbanized areas. The sizes of birds range from the tiny bee hummingbird, which has a total length of two and a half inches, to the albatross, which has a wing span of eleven and a half feet. The largest bird is a bird that cannot fly, the ostrich. Ostriches can stand almost eight feet high and can weigh near 350 pounds. Other extinct birds have been measured to stand over ten feet high. The evolution of birds is still being argued. Most people believe that birds evolved from reptiles. Because of birds mainly delicate bones, few fossils h ...

... the public health and environment. The cancer-causing DDT was banned in 1972 and was found accumulating in the food chain. The use of lead in gasoline was phased out in '73 which caused lead levels to drop 98%. In '74 the agency required drinking water to be physically and chemically treated. CFCs were banned in '78 and a nation-wide toxic waste site cleanup program was developed in 1980. The EPA then evacuated Times Beach, Montana for dangerous levels of dioxin in soil, which was then criticized for its heavyhandedness and arrogance. Charges of mismanagement and undue political influence caused the head of the ...

... industry as a cold money making machine. This of course neglects the fact that the reason logging generates capital is because the world needs wood. There are several economic and environmental issues that are considered when loggers enter and area. Haphazard clear cutting of forests, while it maybe what Meadows would like us to think, does not happen. With every industry, every aspect is carefully debated and analyzed for the short and long term outcomes. Any industry that capitalizes on earth's resources figuratively signs a pact with the earth. This pact bonds this industry to the earth and requires th ...