.... simple and is based on a triad of letter symbols. The first (capital) letter is the critical one; the A climates are humid and tropical; the B climates are very dry; the C climates are humid and mild; the D climates reflect increasing cold; and the E climates mark the polar areas. The first letter is followed by two more letters that further define the climate of that region. The second letter represents and explains the dry season: whether there is or isn't a dry season, whether it is a short or long dry season, and what season it comes in eith .....

.... this relatively recent breakthrough and determine in which ways it can be used to humanity's best advantage. This speech will investigate the ways in which genetic engineering affects two important areas in today's society. The first one will be the improvement of the world's agricultural techniques. With an ever-increasing growth in world population, the Earth's resources are constantly becoming scarce. The advent of genetic engineering may be used to avert the occurrence of worldwide famine and starvation. The second one investigated will be in the fie .....

.... of 9,500 feet and an unprecedented airspeed of 1,700 mph he spotted nine circular aircraft flying in formation and according to his estimate the aircraft were approximately the size of a dc-4 airliner ( jackson 4). This account was the first sighting to ever receive a great deal of media attention. This sighting gave birth to the phrase "flying saucer" coined by a reporter named bill begrette. Although not the first ufo sighting in history, kenneth arnolds account is considered to be the first documented ufo sighting. The following day mr. Arnold discove .....

.... outdoor structures. Statues and monuments that are left unprotected can fall victim to the unpredjudiced destruction of acid rain. Acid Rain reacts to different types of soil and rocks in two ways. 1) Acid rain will dissolve alkaline rocks and soil, or will neutralize the alkalinity. 2) Acid rain will increase the acidicy of already acidic rocks and soil, such as granite, or the soil which results from corroded granite. Acidic chemicals, and alkaline chemicals react to each other by reducing the alkalinity or acidicy of each other. W .....

.... is changing the face of medicine with new cures and tests that will cure millions.. Nuclear power can be converted into strong and efficient nuclear energy and be used for many purposes. Nuclear power reactors generates heat that is converted into steam. The steam can be used directly for energy. This energy is used in transportation. Most military subs are now ran by nuclear energy. The most used purpose of nuclear energy can also be used to generate electric power for example in a commercial nuclear power plant. Another way to produce nuclear energy is by gas .....

.... is vital to all of us that we fully understand 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 peo .....

.... In the past the temperature highs and lows have been the same with carbon dioxide level highs and lows, this does not seem to be a mere coincidence. Carbon dioxide currently accounts for 0.03% of the gas content within the atmosphere. However, it has a adverse impact on the earth's temperature. Thus, minor fluctuations in the percentage of atmospheric carbon dioxide will likely have a significant effect on the global temperature. The percentage of atmospheric carbon dioxide has risen over the past century at an alarming rate. Industrial civilization i .....

.... universe is still expanding, as astronomers have observed. The Steady State model says that the universe does not evolve or change in time. There was no beginning in the past, nor will there be change in the future. This model assumes the perfect cosmological principle. This principle says that the universe is the same everywhere on the large scale, at all times.2 It maintains the same average density of matter forever. There are observational evidences found that can prove the Big Bang model is more reasonable than the Steady State model. First, t .....