.... smoking during pregnancy is also associated with genetic defects as well as an increased incidence of congenital malformations such as cleft palates, microcephalus, and clubfoot. Mothers who smoke one pack a day during pregnancy have an 85% increased risk of having a child with mental retardation. Mothers that smoke during their pregnancy have double the chance of having a child with behavural problems. Another one of the biggest factors that disrupts fetal growth and development is alcohol. This is a very common substance abuse of pregnant women. Everytime the pregnant .....

.... the complex relationship between the atmosphere and the earth. The earth is getting warmer. the changes are small, so far, but they are expected to grow and speed up. Within the next 50 to 100 years, the earth will continue to heat up hotter than it has been in the past million years. As oceans warm and glaciers melt, land and cities along coasts may be flooded. Heat and drought may cause forests to die and food crops to fail. Global warming will effect weather everywhere, plants and animals everywhere and people everywhere. Humans are warming the earth¹s atmosphere by burn .....

.... of which have become extinct and some of which are the plants and animals which live today. The theory that groups of organisms can be transformed into different organisms has been suggested many times since the early 1800s, when scientists began looking for evidence that the evolution process took place. "The most outstanding evolutionists in the nineteenth century was Jean Baptist de Lamarck, who argued that the patterns of resemblance arose through modifications of a common lineage-for example , that lions tigers and others all descendant from a cat like ancestor." (Di .....

.... then gathers the neutrons and pulls them inward. While all these atoms are flying about they smash together then split many of many times, this is when the reactor grabs and pulls in the frictional energy to be processed into electrical watts. This usually causes heat or thermal energy, this must be removed by some kind of a coolant. Most power plants use water or another type of liquid based formula. these coolants are always base related, never acidic. Very few use gas related coolants in there reactors, these are known as thermal reactor based power plants. Another nuc .....

.... 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 engine gets hot. It contains chemicals that aid in the formation of ground level ozone as well as acid rain (2 factsheet, OMS-5). Acid rain destroys the outsides of buildings, statues, etc. Acid rain can also contaminate drinking water, damage vegetation, and destroy sealife. These two pollutants are two of t .....

.... ozone protects people, plants, and animals from harmful radiation. The ozone layer is important because it absorbs most of the damaging ultra-violet radiation from the sun before it reaches ground level, where it can cause sun burn, skin cancer and cataracts. Research suggests that any additional UV-B (ultra-violet radiation) at ground level could depress our bodies’ immune systems, damage the natural food chain and reduce crop yields. Although ozone makes up less that 1ppm of all the gases in our planet’s atmosphere, but it is essential to life on earth. Scientists assume t .....

.... old age ...) FIRST of all, it is important to know that the "greenhouse effect" is not a bad thing in itself. In fact, this planet would be a life-less waste land without its natural greenhouseing. There are a collection of gases called "greenhouse gases," which are water vapor, carbine dioxide, ozone, methane, nitrous oxide, and chlorofluorocarbons (CFC). Without the natural greenhouse effect, the surface temperature of our planet would be an average of -18°C (zero degrees F). The mixture of these gases have remained pretty much stable over the centuries and have kept us .....

.... in my mind, something had to be there to cause this super mass. Was the universe contracting until it formed this huge mass? I believe that we may never know how the universe came about, rather have some idea as to what came directly before it’s current state as well as before that and so on. We could come up with ideas until we die, and someone would just continue in our footsteps. I do have one idea as to how this super mass which is the being behind the big bang theory came to be one mass. Scientists as well as philosophers and just about anyone you talk to can tell you .....