ICSE-X-Geography
12: Waste Management Class 10 Geography
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- Qstn #1What is known as waste?Ans : Waste is a thing is not required by the producer, processor or owner. It is generally discarded or thrown away by households, industries, etc.
- Qstn #3What are sources of waste?Ans : Waste is generated from a number of sources. The major sources of waste are domestic waste, industrial waste, agricultural waste, biomedical waste, municipal waste etc.
- Qstn #4What are the sources of agricultural wastes.Ans : Fertilizers, pesticides and insecticides and other chemical agents.
- Qstn #5What is meant by domestic waste?Ans : Wastes generated due to domestic activities are called domestic wastes. Fruits and vegetable peels, paper, polythenes, discarded clothes etc. are the sources of domestic waste.
- Qstn #6Define gaseous waste.Ans : It includes fuel exhausts containing carbon dioxide, nitrogen oxides, carbon monoxide, etc., and smog which is formed as a hazy mixture of gases when fuel exhaust reacts with sunlight.
- Qstn #7What does industrial waste include?Ans : Industrial wastes include any material that is rendered useless during a manufacturing process.
Example: Metals, Chemicals, Gases.
- Qstn #8What is biomedical waste?Ans : Biomedical waste generated from hospital activities, pathology, laboratory and other associated areas.
Examples: Blades, Needles, Body part etc.
- Qstn #9What form of waste is generated from the oil refineries?Ans : Petroleum is found in raw form while refining, it releases a large amount of gaseous and liquid waste.
- Qstn #10What is hazardous waste? How is it generated?Ans : Hazardous waste is waste material, often in chemical form that comes from agriculture, radioactive sources, and industries can pose a long term risk to health and environment.
- Qstn #11What is segregation?Ans : Segregation is the initial stage of waste disposal. The waste can segregated according to their features like sharp edged waste like blades, knives, plastic glass, bottles, etc.
- Qstn #12What is open dumping of wastes?Ans : In these method waste materials is dumped in open low lands far away from the city. It is a common and cheapest method of disposing waste on land. Nowadays; this method is improved and is called landfill.
- Qstn #13How is solid waste disposed of in ah incinerator?Ans : Solid waste disposal is its reduction in weight and volume. In the incinerator the waste is burned and if reduces by 90% in weight and volume.
- Qstn #14What do you understand by landfill?Ans : Sanitary landfill is a way of disposing refuse on land without creating nuisances or hazards to public health or safety. The waste is packed and dumped at the site and is covered with earth daily to prevent insects or rodents from entering into the landfill.
- Qstn #15What is composting?Ans : Composting is a natural degradation process in which biodegradable materials are decomposed by microbes and converted into manure.