.... being. It nows begins to move down into the uterus. The egg is now called a blastocyst. The time that this takes is often measured after the last menstrual period(LMP). The time is also measured in trimesters, three month intervals. After about thirty hours the cell divides for the first time. It is continuously moving towards the uterus where it will call home for the next nine months. After about two days it has divided to having about eight cells. After four days it is in the uterus and has to "land" somewhere and attach itself to the endometrium. The eighth day is when implantation occurs. The fertilized egg then implants itself .....

.... Without hesitation, you snatch it up and gulp it down. As you're busily eating, you notice that you're covered completely with this mysterious black substance. 11 million gallons of this black substance is everywhere and it is continuing to spread and spread. You see thousands of other birds with the same problem. You try to fly, but your wings are too heavy. You flap and flap but it is hopeless. Sinking to the bottom of the beautiful waters, you wonder what that sticky black killer was. It's simple. It's crude. It's oil. This scenario is nothing but a harsh reality that most people were unconcerned about until the disaster of the Exxon Valdez. Th .....

.... well as by the web of life it supports. Of all the ways to tamper with or harm a river, a large dam usually has the most immediate and far-reaching effects because of the huge changes it causes to river circulation system. Some 40,000 large dams, most of which were built in the past 50 years, now obstruct the world's rivers. More than 400,000 square kilometers--an area larger than Zimbabwe, and 13 times the size of Lesotho. Volta Reservoir behind Ghana's Akasombo Dam, flooded 4% of that nation's land area. In the United States, whose 5,500 large dams make it the second most dammed country in the world, we have stopped building large dams, and are now .....

.... position is based on the idea that global warming is real and that it is caused by human activity. Further, it presupposes that the potential damage caused by global warming would greatly outweigh the damage caused to the economy by severely restricting energy use. Finally, his position assumes that the agreement will significantly reduce greenhouse gas emissions worldwide and will prevent global warming. Science Is global warming occurring? - According to Accu-Weather, the world's leading commercial forecaster, "Global air temperatures as measured by land-based weather stations show an increase of about 0.45 degrees Celsius over the past century. This ma .....

.... would suffice since the thick fur protects the animal in any extreme temperatures. Large enclosures would not be needed as they would be for a normal elephant since the Woolly Mammoth is only three meters high. The huge tusks would allow it to scavenge for its own food, so no special feedings would be necessary. Feedings would also be needed on a less frequent basis since the Woolly Mammoth, much like today's camels, keeps under its sloping back a thick layer of blubber as nutrition when food was not needed. The problem in keeping a creature such as the Woolly Mammoth in a zoo- like surrounding would be poachers. Due to the endangerment of such a magnif .....

.... and the balance from other industrial, commercial, and residential combustion processes. These pollutants come from the use of coal in the production of electricity, from smelting, and from the internal combustion engines in most cars. Once released into the atmosphere, they are converted into such pollutants as nitric acid and sulfuric acid, both dissolving easily in water. This results in acidic water droplets that can be carried by prevailing winds, returning to Earth as acid rain, snow, or fog. This effects the lakes by changing the pH balance. As the water pH approaches 6, crustaceans, insects, and plankton begin to disappear. When the pH is slig .....

.... illumination of signs and for toys. Recently though, technology has started to catch up and the uses of fiber optics are numerous. Fortunately for the high-tech society of today, some scientists and technicians researched the avenues of fiber optics. Fiber optics can be seen in telephone systems, in the military, in cars, in medicine, and in many other fields of study. For all industries and professions, "Fiber optics allow huge amounts of voice, data and video imagery to be transmitted instantaneously, allowing for photographic-quality images, interactive video conferencing and other business multimedia uses" (Inman News Features 1). It's becoming possible t .....

.... carbon and hydrogen (2 factsheet, OMS-5). Hydrocarbons are released when fuel in the engine burns partially. When hydrocarbons come in contact with sunlight they form ground level ozone. Ground level ozone is a major ingredient in the formation of smog. Ground level ozone is responsible for irritating eyes, damaging lungs, and it complicating respiratory problems. Hydrocarbons aren't the only pollutants released through car exhaust. Two more pollutants released through car exhaust are carbon monoxide and nitrogen oxide. The first reduces the flow of oxygen to the bloodstream, and could harm people with heart disease. Nitrogen oxide is formed when a car .....