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Plant Evolution A long 3000 million years ago the earth was not suitable for life as the atmosphere contained little to no oxygen and without this, deadly ultra violet rays from the sun bombarded the unprotected surface. This lead to life beginning in the ocean where it was safe from the sun's rays. It was here that life began with bacteri...
Global warming--is it getting warmer Greenhouse Effect: Is it Getting Warmer? By definition, the greenhouse effect is a term for the role the atmosphere plays in insulating and warming the earth's surface. In modern society, this is the term for something better known as global warming. The earth?s climate is predicted to change drastica...
The Health Effects of Marijuana on Humans Tim Murphy Introduction Marijuana has been used as a drug since the beginning of time, yet there are still many mysteries about its health effects on humans. Marijuana, or cannabis sativa, is a preparation of the crushed flowers and buds of female hemp plant. The existence of the plant has been reported...
By hottim@hotmail.com One aspect of physics in my life is gravity. Whenever I loose my balance, whether I?m on a bike, walking, or trying to stand on one leg, I will fall down. This is because every mass is attracted to every other mass, so my body is attracted to the earth, and the earth is attracted to my body, only not as much...
Inhalants Inhalants are very dangerous. The come from ordinary house hold products like aerosols. Inhalants are used to get a high. They are being use by younger people. Inhalant use is intentionally breathing in a vapor of gas with the purpose of reaching a high. Inhalants are legal everyday product, which have a useful purpose....
Atom & Qi The atom is the smallest portion of a substance that is not perceivable by human senses. The notion of atoms was conceived by ancient Greeks and was developed over thousands of years of scientific inquiry. The concept of qi as the most basic substance of which the world (everything) is comprised, was understood by the ancient...
Infectious Diseases (STDS) STDS are an ever-increasing problem throughout the world, which threaten everyone who potentially comes in contact with them. They are able to wipe out entire nations or simply limit ones ability to function in a normal manner within a society. There are no limits to the ethnic background, cultural beliefs, age...
Floyd Hurricane Hur-ri-cane (n) 1. A tropical cyclone usually involving heavy rains And winds exceeding 74 mph. (119 kph.) From carib [huracan] What is a hurricane? Encarta defines it as a tropical cyclone with winds up to 74 mph (119 kph.) To many people it means destruction. Hurricane Floyd caused tremendous destruction to Amer...
Two years ago, the Chrysler corporation completely gutted its Windsor, Ontario, car assembly plant and within six weeks had installed an entirely new factory inside the building. It was a marvel of engineering. When it came time to go to work, a whole new work force marched onto the assembly line. There on opening day was a crew...
The greenhouse effect occurs when gases such as methane, carbon dioxide, nitrogen oxide and CFCs trap heat in the atmosphere by acting as a pane of glass in a car. _The glass_ lets the sun light in to make heat but when the heat tries to get out the gases absorb the heat. Holding this heat in causes heat waves, droughts and...
It seems as though every time we turn around there is a new health fad, be it a drug, herb or diet. Within the past 10 years the drug melatonin has hit the market and seems to have made quite a splash with the public and the media. At a time when an estimated thirty to forty million Americans suffer from serious sleep disorders t...
------ The earth?s climate is predicted to change because human actions are altering the chemical composition of the atmosphere through the increase of greenhouse gases, such as carbon dioxide, methane, and nitrous oxide. is a problem that everybody should be aware and concerned about. It affects you no matter how or where you live, it could...
The Great White shark, also known as the white death, is considered the most dangerous shark in the waters. The Great White has a conical instead of a flattened snout, black eyes, and large, serrated, arrowhead-shaped teeth. The upper and lower lobes of the tail are almost equal in size, and the body is blue or brown-gray, not...
....and what are we g is caused by pollution containing sulfur dioxide, nitrogen oxide, and ozone ( SO', NOx, and O' ) is released into the air. These chemicals are absorbed into clouds and results in Acid Presipitation ( , Acid Snow, Acid Hail, Acid Sleet ). When the chemicals aren't absorbed into clouds, they can drift for miles and fall...
