... a major dilemma. Automobile exhaust fumes and factory pollutants are only a couple of the impurities causing damaging affects to the ozone layer and atmosphere. We depend on the ozone to defend us from harmful UV rays. Finally, we have a major impact on the degeneration of natural resources. Millions of gallons of oil, coal, and other valuable resources are wasted each day. These are just a few of the human disruptions to nature available to our knowledge. We are conscious of many more, and there are probably others that we are not aware of. If we do not start taking them seriously soon it will be too late, ...

... quality. Sales of cannabis are illegal in the United States but many countries have legalized it because of the medical use of cannabis. Cannabis plants do grow wild in many parts of the world. This plants has been used for thousands of years for medical use only until the 19th century when use of cannabis spread from China and the Middle East to the population of Europe and America. Since that time cannabis became illegal and very popular drug known in all countries. In some way the affects of the marijuana may be serious. When smoked, the effects of cannabis begin immediately. When eaten the effects can tak ...

... 'n peelers", which results in a copious amount of lotions and creams being slathered on everyday. These lotions are, usually, sunscreens or sunblocks, meant to protect us from the blisters, the pain, and in general to keep our youthful glow lasting just a few years longer. A sunguard is a cream designed to protect one's skin from being sunburned. Our bodies are incrementally damaged by each new exposure to the sun, and this damage can later be seen in the form of wrinkles, blotchy skin and even skin cancer. Sunscreens have evolved a goodly amount over the years. Christopher Columbus noticed in 1492 that the natives o ...

... to install into your car, these are also very expensive, but probably more preferred for those who just want the computer inside their car. But there's also another option, however, less convenient; laptops are being used by millions of people everyday, so with a CD-ROM drive and a antenna, you can hook up your laptop to your car with an antenna and have the same results as the ones that come with cars. Just because we have these in our cars however, doesn't mean that we won't get lost, but it is more difficult to get lost, and it's definetly easier to find your way around if you do get lost. When get in your car, a ...

... change different variations would be favoured in different places. This would mean these variations would spread through the populations of the plants or animals. Over time this would finally lead to a development of new species. This theory was explained in the book ‘The Origin of Species’, which describes his studies on the Galapagos Islands in the Pacific Ocean. He noticed that the species on the islands varied slightly from each island and were adapted to local conditions. The reaction to this theory was immediate. Biologists argued that Darwin could not prove his hypothesis. Other criticise ...

... year industrially developed countries generate billions of tons of pollutants. The level is usually given in terms of atmospheric concentrations or, for gases in terms of parts per million, that is, number of pollutant molecules per million air molecules. Many come from directly identifiable sources; sulfur dioxide, for example, comes from electric power plants burning coal or oil. Others are formed through the action of sunlight on previously emitted reactive materials. For example, ozone, a dangerous pollutant in smog, is produced by the interaction of hydrocarbons and nitrogen oxides under the influence ...

... in the rain, took off his hat because he believed that the hat could get ruined but his hair will get nothing but wet. Einstein did not act any different or better than anyone either. He did not dress any better, which was proved when Hoffman first met Einstein, he went into his office, and Einstein was sitting there in "ill-fitting cloths," and his hair "characteristic-ally awry". He did not speak or write better or more elegantly than anyone else either. He did not even have any special learning powers either. This was proved when Hoffman was writing equations on a blackboard when he was asked to slow do ...

... our planet would be to find and chart every asteroid that could threaten us. That would be a very tedious and never ending job, but is necessary for the defense system to work. It would do us humans no good to have some sort of defense against asteroids if we don’t know when they will strike. So after thinking about an anti-asteroid defense system, I think that our government should look into constructing one. When one thinks about what an asteroid could do to our planet it is usually a very scary thought. In the past we have been very lucky with where asteroids have hit our earth. Back in 1908 in the Tu ...

... hydrophilic, and the nonpolar, hydrophobic. A fatty acid is nonpolar, hence it doesn't mix with water. Molecules of a certain class have similar chemical properties because they have the same functional groups. A chemical test that is sensitive to these groups can be used to identify molecules that are in that class. This lab is broken down into four different sections, the Benedict's test for reducing sugars, the iodine test for the presence of starch, the Sudan III test for fatty acids, and the Biuret test for amino groups present in proteins. The last part of this lab takes an unknown substance and by th ...

... Canada’s first nuclear power plant called NPD for Nuclear Power Demonstration. In 1962, NPD began supplying the province of Ontario with its first nuclear generated electricity. Ontario had found it’s new source of electricity, and they were not fully aware consequences that would happen after many years of use. Power projects (later AECL CANDU), based in Toronto. Ontario and Montreal, Quebec became responsible for implementing AECL’s nuclear power program and marketing CANDU reactors. Nuclear power was cheap, if you did not have to worry about the waste. This was the answer to OntarioR ...