Tag: environment pollution

Questions Related to environment pollution

Which of the following is not a major option for managing hazardous waste?

economics environment pollution strategies to control environmental pollution strategies to control pollution strategies to control environmental pollution and green chemistry

  1. Reducing the production of waste while increasing the amount generated.

  2. Reducing the volume and/or hazard of the waste.

  3. Long-term storage or disposal.

  4. Dumping at sea

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Correct Option: A
Explanation:

Reducing the volume and/or hazard of the waste, long-term storage or disposal, dumping at sea are ways of managing hazardous wastes. Reducing the production of waste while increasing the amount generated is a preventive method rather than a disposal method.

Treatment of waste water involves physical, chemical, and biological processes, which remove _______ matter that contaminates waste water.

economics environment pollution strategies to control environmental pollution strategies to control pollution strategies to control environmental pollution and green chemistry

  1. physical

  2. chemical and biological 

  3. both $A$ and $B$

  4. none of the above

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Correct Option: C
Explanation:

Physical treatment of water includes-filtration, sedimentation, separation etc. Chemical and Biological treatment includes coagulation, flocculation, ion-exchange, absorption, also aerobic treatments and anaerobic treatments. By these treatments, all physical, chemical and biological matter that contaminates wastewater, can be removed 

Water treatment plants should be installed in all _________ areas .

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  1. desert

  2. residential

  3. industrial

  4. none of the above

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Correct Option: C
Explanation:

Water treatment plants should be installed in all industrial areas. Laws for industrial units should be strictly implemented so that polluted water is not disposed off directly into rivers and lake.

The fuel obtained by decomposing sludge is:

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  1. biogas

  2. petrol

  3. diesel

  4. kerosene

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Correct Option: A
Explanation:

The gas obtained by decomposing sludge is Biogas (methane and carbon dioxide). Decomposition of sludge products methane and carbon dioxide which is then stored and supplied as biogas for various household processes and other commercial processes.

Ozone higher up in the atmosphere acts as a shield to prevent UV rays from reaching the Earth's surface These UV rays are responsible for which of the following diseases?
(i) Skin cancer          (ii) Eye damage          (iii) Lung cancer
(iv) Damage to immune system           (v) Colour blindness

economics environment pollution strategies to control environmental pollution strategies to control pollution strategies to control environmental pollution and green chemistry

  1. (i), (ii) & (iii)

  2. (i), (ii), (iv) & (v)

  3. (i), (iii), (v)

  4. (i), (ii), (iii), (iv) & (v)

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Correct Option: B
Explanation:

The disease cause by UV rays are

1. Skin cancer
2. Eye damage
3. Damage to immune system 
4. Colour blindness

______ or using fungus to metabolize contaminants and accumulate heavy metals.

economics environment pollution strategies to control environmental pollution strategies to control pollution strategies to control environmental pollution and green chemistry

  1. Bioremediation

  2. Phytoremediation

  3. Both A and B

  4. Mycoremediation

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Correct Option: D
Explanation:

Mycoremediation is a form of bioremediation, the process of using fungi to degrade or sequester contaminants in the environment. Stimulating microbial and enzyme activity, mycelium reduces toxins in-situ. Some fungi are hyperaccumulators, capable of absorbing and concentrating heavy metals in the mushroom fruit bodies.

Industrial waste include:

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  1. chemical solvents, paints

  2. sandpaper, paper products

  3. industrial by-products, radioactive waste

  4. all the above

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Correct Option: D
Explanation:

Industrial waste is the waste produced by industrial activity which includes any material that is rendered useless during a manufacturing process such as that of factories, industries, mills, and mining operations. It has existed since the start of the Industrial Revolution. Some examples of industrial wastes are chemical solvents, paints, sandpaper, paper products, industrial by-products, metals, and radioactive wastes.

Waste management is ________.

economics environment pollution strategies to control environmental pollution strategies to control pollution strategies to control environmental pollution and green chemistry

  1. to develop products and processes that are kind to the environment. This can involve reducing the waste a process creates, using renewable materials, lessening the energy required to form a product, etc

  2. the collection, transportation, disposal or recycling and monitoring of waste

  3. the process of creating a clean and green environment

  4. None of above

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Correct Option: B
Explanation:

Waste management is the precise name for the collection, transportation, disposal or recycling and monitoring of waste. This term is assigned to the material, waste material that is produced through human being activity. This material is managed to avoid its adverse effect on human health and environment.

Sludge is:

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  1. created from combination of gases released from industries and water

  2. a semi-solid slurry and can be produced as sewage sludge from wastewater treatment processes

  3. a type of household waste

  4. a type of industrial waste

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Correct Option: B
Explanation:

Sludge is a semi-solid slurry and can be produced as sewage sludge from wastewater treatment processes or as a settled suspension obtained from conventional drinking water treatment and numerous other industrial processes.

Which of the following statements is/are correct for generating non-biodegradable waste?

economics environment pollution strategies to control environmental pollution strategies to control pollution strategies to control environmental pollution and green chemistry

  1. Thermal power plants producing fly ash

  2. Iron and steel plants producing blast furnace slag

  3. Metal industries producing mud and tailings

  4. All of the above

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Correct Option: D
Explanation:

Non-biodegradable waste is a type of waste that can not be broken down into its base compounds by micro-organisms, air, moisture or soil in a reasonable amount of time. Non-biodegradable waste is an environmental concern, as it threatens to overwhelm landfills and create disposal problems. Almost all industries generate some amount of non biodegradable waste for eg fly ash,slag,mud which are major concern for the environment.