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Garbage in Garbage out Test - 4

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Garbage in Garbage out Test - 4
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  • Question 1
    1 / -0
    Which of the following is mostly a degradable pollutant?
    Solution
    Pollutants can be classified as degradable or non-degradable, based on their ability to be degraded upon disposed of. A degradable pollutant degrades after some time, either automatically (e.g., heat) or through the agency of microorganisms (e.g., domestic sewage, livestock wastes, market garbage). Among the following, domestic wastes are mostly degradable while others are not.
    So, the correct answer is option C.
  • Question 2
    1 / -0
    Which of the following is non-biodegradable?
    Solution
    The plastics are the non-biodegradable wastes because they are synthetic polymers which cannot be acted upon by the microbes. They cannot be degraded by the decomposition activity of the bacteria and fungi. The cotton, paper and leftover food are degradable. 
    Thus, the correct answer is option A. 
  • Question 3
    1 / -0
    Domestic waste contains:
    Solution
    Degradable pollutants degrade after some time, either automatically or through microbial action, e.g., biodegradable sewage, livestock wastes, garbage and domestic wastes. Biodegradable wastes mean wastes which can be cleared by biological agents like microorganisms. Biodegradable pollutants are easily disposed or degraded through natural processes or waste treatment plants. Domestic wastes contain both biodegradable pollutants and non-biodegradable pollutants.
    So, the correct option id 'D'.
  • Question 4
    1 / -0
    Which of the following can be considered as domestic waste? 
  • Question 5
    1 / -0
    Garbage collected from our houses should be dumped in a ____.
    Solution
    • Garbage collected from our houses should be dumped in a landfill because they use clay liners to isolate trash, while a municipal solid waste (MSW) landfill can use synthetic or clay liners. 
    • The purpose of a landfill is to isolate waste from its surrounding environment, preventing water contamination and contact with air.
    • This landfill gas is collected in pipes and recycled into electricity and fuel. Materials that may be dangerous, such as hazardous or radioactive waste are not allowed at the landfill.
    So, the correct answer is 'Landfill'.
  • Question 6
    1 / -0
    Domestic waste will mainly lead to:
    Solution
    Domestic sewage primarily contains biodegradable organic matter, which readily decomposes by bacteria and other micro-organisms, which can multiply using these organic substances as substrates and hence utilise some of the components of sewage. 
    Hence, correct answer is option A.
  • Question 7
    1 / -0
    Which of the following statements is correct in the case of vermicompost?
    Solution
    • The garbage collected from various households and other places is put into landfills. Inside landfills, garbage is allowed to settle down and decompose, which is further used as manure.
    • When microorganisms or worms are added to fasten the process of decomposition, the process is called vermicomposting.
    So, option A "Prepared from plant and animal waste" is the correct answer.
  • Question 8
    1 / -0
    If a garbage bin contains the following articles.
    Newspaper, Bread, Plastic bags, Raincoats, Rubber slippers.
    Which of the articles can be recycled and used again?
  • Question 9
    1 / -0
    If a garbage bin contains the following articles- 
    newspaper, bread, plastic bags, raincoats, rubber and slippers.

    Which of the articles can be recycled and used again?
  • Question 10
    1 / -0
    Which one is recyclable waste?
    Solution
    Recyclable wastes can be reused into new materials. For example, paper can be recycled and this will reduce deforestation because the paper is made from wood pulp. Torn clothes can be recycled to form bags and into other usable forms. Metallic and plastic discards can be melted and recycled into usable forms any number of times. Recycling reduces environmental pollution and uses less energy as compared to the production of new materials from raw materials.
    Hence, all the options are correct.
    So, the correct answer is 'All the above'.
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