Tag: perfect competition and monopoly

Questions Related to perfect competition and monopoly

BOD measures the _____.

perfect competition and monopoly market structure and pricing economics

  1. Amount of bacteria in a given sample of water

  2. Amount of algae being decomposed in a given sample

  3. Amount of oxygen bacteria need to decompose organic matter in a given sample

  4. Amount of oxygen bacteria need to decompose organic matter in a given sample in a fixed period of time

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Correct Option: D
Explanation:

Biochemical oxygen demand (BOD) is a measure of how much organic pollution is in water. The BOD test measures the amount of dissolved oxygen in water that is used up due to the breakdown of organic pollutants, such as sewage, in a certain number of days.

Untreated sewage may cause _____.

perfect competition and monopoly market structure and pricing economics

  1. Outbreak of epidemic

  2. Cholera outbreaks

  3. Typhoid outbreaks

  4. All of these

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Correct Option: D
Explanation:

Untreated sewage is an excellent source of bacterial growth. Such untreated sewage can result in spread of many bacterial diseases like outbreak of epidemics, cholera, typhoid etc.

Dumping has major disadvantages, however, especially in heavily polluted areas.

perfect competition and monopoly market structure and pricing economics

  1. True

  2. False

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Correct Option: A

Newspapers, used bottles, magazines, carry bags, aluminum foils, plastics, metal, glass, old exercise books, oilcans, etc., are called _________. 

perfect competition and monopoly market structure and pricing economics

  1. Wet waste

  2. Dry waste

  3. Waste disposal

  4. None of these

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Correct Option: B

Dumping is also known as landfilling.

perfect competition and monopoly market structure and pricing economics

  1. True

  2. False

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Correct Option: A

On the basis of degradation, waste can be segregated as biodegradable and nonbiodegradable. 

perfect competition and monopoly market structure and pricing economics

  1. True

  2. False

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Correct Option: A
Explanation:

 

The basic difference between biodegradable and non-biodegradable is that biodegradable items decompose or break down naturally whereas Non-biodegradable wastes are those who cannot be decomposed or dissolved by natural agents.

Biodegradable waste can be commonly found in municipal solid waste as green waste, food waste, paper waste, and biodegradable plastics. Other biodegradable wastes include human waste, manure, sewage, slaughterhouse waste.

Non-biodegradable waste includes Plastic products like grocery bags, plastic bags, water bottles, etc. Metals, metal cans, tins, metal scraps, etc. Construction waste, rubber tires, man-made fibers like nylon etc. Computer hardware like glass, CDs, DVDS, cellophane, processed woods, cable wires, Styrofoam etc.

Toxic waste includes old medicines, paints, chemicals, bulbs, spray cans, fertilizers and pesticide containers, batteries, shoe polish, etc.

perfect competition and monopoly market structure and pricing economics

  1. True

  2. False

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Correct Option: A

Composting helps reduce the adverse effects of excessive alkalinity, acidity, or the excessive use of chemical fertilizer.

perfect competition and monopoly market structure and pricing economics

  1. True

  2. False

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Correct Option: A

Drainage is a removal of undesirable excess water from a region.

perfect competition and monopoly market structure and pricing economics

  1. True

  2. False

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Correct Option: A

Kitchen waste, vegetables, fruits, flowers, leaves from the garden, and paper are called ____________.

perfect competition and monopoly market structure and pricing economics

  1. Organic waste

  2. Recyclable waste

  3. Toxic waste

  4. Soiled

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Correct Option: A
Explanation:

Organic waste is one which is biodegradable. It can undergo decomposition by the microbes aerobically or anaerobically to form compost which can be used as a fertilizer or it can just become a part of the soil.