Potable Water


“Potable water is water which is fit for consumption by humans and other animals. It is also called drinking water. The issue of access to potable water is very important. In developed countries, people may not put a great deal

Prevention for water pollution


“Prevention to reduce water pollution are as follows: 1) Never throw rubbish away anyhow. Always look for the correct waste bin. If there is none around, please take it home and put it in your trash can. This includes places

Effects of water pollution


Most water pollution doesn’t begin in the water itself. Take the oceans: around 80 percent of ocean pollution enters our seas from the land. Virtually any human activity can have an effect on the quality of our water environment. When

Water Pollution


“Water pollution is the contamination of water bodies. Water pollution occurs when pollutants are directly or indirectly discharged into water bodies without adequate treatment to remove harmful compounds. Water pollution affects plants and organisms living in these bodies of water.

Prevention for air pollution


“Prevention to reduce air pollution are as follows: 1) Encourage your family to walk to the neighbourhood market. 2) Whenever possible take your bicycle. 3) As far as possible use public forms of transport. 4) Don’t let your father drop

Greenhouse Effect


“The greenhouse effect is a process by which thermal radiation from a planetary surface is absorbed by atmospheric greenhouse gases, and is re-radiated in all directions. Greenhouse gases trap solar radiation which increases the overall temperature of the atmosphere. Carbon

Effects of Air Pollution


“1) Acid rain: Chemical reactions involving air pollutants can create acidic compounds which can cause harm to vegetation and buildings. Sometimes, when an air pollutant, such as sulfuric acid combines with the water droplets that make up clouds, the water

How does Air Get Polluted?


“Air pollution is usually a result of human activity. The main causes of human air pollution is from cars, waste disposal and industry. However air can also be polluted from natural processes, like volcanic activity which releases various pollutants like

Air pollution


“Air pollution is the introduction of particulates, biological molecules, or other harmful materials into the Earth’s atmosphere, possibly causing disease, death to humans, damage to other living organisms such as food crops, or the natural or built environment. The atmosphere

Artificial satellites


“Artificial satellites are human-built objects orbiting the Earth and other planets in the Solar System. This is different from the natural satellites, or moons, that orbit planets, dwarf planets and even asteroids. Artificial satellites are used to study the Earth,

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