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Search results 1231 - 1240 of 1292 matching essays
- 1231: Evolution
- ... attention, curiosity, imitation, reason, etc. as well as progress in "k! nowledge morals and religion"10. Here is where originated the classic idea of the evolution of man from ape, specifically where he contended that Africa was the cradle of civilization. This work also met with opposition but because of the impact of his "revolutionary" initial work this opposition was comparatively muted11. A summary of the critical issues of Darwin's ...
- 1232: Coelacanths
- ... increased by chances. Until 1938 all coelacanths were considered to be extinct; we thought the last coelacanth lived approximately 70 million years ago. In December of 1938, however, fishermen off the eastern coast of South Africa caught a living coelacanth. It was so similar to its ancient relatives that it was called a "living fossil." For years after this fortunate discovery, scientists searched for another living coelacanth. Finally, off the Comero ...
- 1233: Endangered Species
- ... to help the Black Rhino to rebound. “Now under strict control, the population of Black Rhinos has risen to at least 2,500 in and around parks and on private land in eastern and southern Africa, an increase of 100 from three years ago” (Davies 1). With the Black Rhino on the endangered species list, the attention these animals are getting has been astounding. All this attention is bringing people to ...
- 1234: Possibility of Terraforming One of Earth's Neighboring Planets
- ... The dinosaurs died out 65 million years ago, their extinction spawned the Age of mammals. The earliest remains of human ancestors date back two million years and the appearance of modern humans occurred in Eastern Africa's Oldowan gorge 40,000 years ago. It is important to recognize that all of nature facilitates the life that exists in the biosphere. The Earth has seven ecosystems each is unique, yet they function ...
- 1235: Acid Rain
- ... from acid rain has been reported in northern Europe and North America. High levels of acid rain have also been detected in other areas of the world, such as above the tropical rain forest of Africa. Acid rain has destroyed plant and animal life in lakes, damaged forests and crops, endangered marine life in coastal waters, eroded structures, and contaminated drinking water. Research has shown that although some of the damage ...
- 1236: Chromium
- ... chromium , iron, and oxygen. Chromite is a common rather ordinary black mineral that no one really noticed until more recent times. Nearly all the world's supply of chromite comes from Zimbabwe, Russia, Turkey, South Africa, Cuba, and the Philippines. The United States imports almost all its chromite. Chromium is added to other metals to make them harder and more resistant to chemicals. Small quantities mixed with steel make the metal ...
- 1237: Environmental Crisis
- ... is valid because our environmental problems have largely resulted from population growth, which has lead to apathy and inaction with regard to the wasteful consumption of resources. Examples are the desertification of the Sahel in Africa, the one child policy in China and the mis-management of our oceans. The Sahel is a strip of land that extends for more than 6000 kilometres across the southern edge of the Sahara desert ...
- 1238: Ocean Environment
- ... is also banned. The differences between terrestial regions are well known. Less well known are the features that distingush the Atlantic from the Pacific Ocean, or the coast of South America from those of Southern Africa. Regardless of this, the various regions of the world's oceans are all affected by human activity, with pollution and harvesting of resouces of resouces being common to all seas and oceans. The various marine ...
- 1239: Circulation Systems Over China
- ... the southern part of the waves would affect Gansu, Inner Mongolia, Ningxia and North China. The second branch of the westerlies come from the south of Tibet Plateau originated from the Mediterranean Sea and North Africa. These westerlies enter China and bring moist air to southern China. Besides the Mongolia High that we have discussed, China is also influenced by a high frequency of cyclones and anticyclones. The cyclones in China ...
- 1240: Time To Change
- ... tear" to the earth. To resolve this issue, some say we should cease all study toward the curing of disease. Others said we should stop aid to the poor, sick, and homeless. They ration in Africa that the sickness is a natural occurrence. Also, some of the Earth-Firsters' believe in order to conserve land and nature, people should be banned from a large portion of the earth. These are only ...
Search results 1231 - 1240 of 1292 matching essays
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