MAJOR HYDRO-ELECTRIC POWER PROJECTS IN AFRICA
Hydro-Electric Power (H.E.P) is the generation of electric power (electricity) from water. This is achieved through the damming of rivers and the use of river water to turn or drive turbines leading to the generation of electricity. A dam is…
PRESSURE AND RELATIVE HUMIDITY
Pressure is defined as the force exerted on the earth’s surface and other objects by air, because air has weight. On maps, places having equal atmospheric pressure are joined together by lines called Isobars. FACTORS AFFECTING PRESSURE Altitude: When…
ENVIRONMENTAL POLLUTION
Pollution is the release of substances into the environment i.e. air, water or land in quantities or to the level that are harmful to man, animals and plants. The substances that cause pollution in the environment are called pollutants. …
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