Africa, second largest of Earth's seven continents, covering 23 percent of the world's total land area and containing 13 percent of the world's population. Africa straddles the equator and most of its area lies within the tropics. It is bounded by the Atlantic Ocean on the west, the Indian Ocean and Red Sea on the east, and the Mediterranean Sea on the north. In the northeastern corner of the continent, Africa is connected with Asia by the …showed first 75 words of 800 total…

…showed last 75 words of 800 total…soil, polluted water, and exotic diseases. These days have begun to wane. Increased scientific research on the African environment has done much to dispel old misconceptions and to provide insights into the physical processes that give shape to the landscape. The relationship of African societies to the environment is also much better understood. Yet much remains to be done before this huge and complex continent is well known and appreciated, especially by the general public