Water Pollution Essay

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1) What is water pollution? 2) What causes water pollution? 3) Name the 2 sources of pollution . 4) What are the different types of water pollution? 5) How can water pollution be prevented? 6) Pollution can be: MICROBIOLOGICAL, CHEMICAL, SUSPENDED MATTER, NUTRIENTS, OXYGEN-DEPLETING SUBSTANCES. Give one real example for each cse with a brief explanation. 1) 1- Water pollution is the contamination of water bodies, very often by human activities.

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You can prevent water pollution of nearby rivers and lakes as well as groundwater and drinking water by following some simple guidelines in your everyday life. •Conserve water by turning off the tap when running water is not necessary. This helps prevent water shortages and reduces the amount of contaminated water that needs treatment. •Be careful about what you throw down your sink or toilet. Don’t throw paints, oils or other forms of litter down the drain. •Try to use environmentally household products, such as washing powder, household cleaning agents and toiletries. •Take great care not to overuse pesticides and fertilisers. This will prevent runoffs of the material into nearby water sources. •By having more plants in your garden you are preventing fertiliser, pesticides and contaminated water from running off into nearby water sources.

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Aquatic plants are primary producers of oxygen. Plants produce oxygen as a by-product of photosynthesis. The rate of photosynthesis is dependent upon light. Because of the effect of sunlight on photosynthesis, the amount of oxygen in pond water fluctuates daily. Oxygen levels are usually highest at midday and lowest just before sunrise. Fish kills usually occur when more oxygen is consumed during the night hours than is produced during daylight hours. Warm water does not contain as much oxygen as cold water. Thus, during warm weather months, mismanagement of ponds by overstocking, overfeeding, overfertilization, pollution from barns and feedlots, or chemical treatment of aquatic weeds can result in oxygen depletion and fish kills.

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