Tag: waste generation and management

Quizzes (6) Questions (85)

Questions Related to waste generation and management

Multiple choice biology waste generation and management disposal of waste safe disposal of waste solid waste and its management

Which is the best method to dispose off biological wastes from hospitals ?

  1. Incineration

  2. Landfill

  3. Recycling

  4. Composting
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

The burning of a substance at high temperature to form ash is called incineration. It is used to destroy biological waste. All the organic matter present in the waste is removed as carbon dioxide and water vapour.

Multiple choice biology waste generation and management disposal of waste safe disposal of waste solid waste and its management

Which method of solid waste disposal is known as hygienic method?

  1. Incineration

  2. Landfilling

  3. Pulverization

  4. Composition
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Composting is considered the most hygienic solid waste disposal method because it converts organic waste into stable, pathogen-free compost through controlled microbial decomposition. It's environmentally friendly and produces useful fertilizer.

Multiple choice biology waste generation and management disposal of waste safe disposal of waste solid waste and its management

Biological processes for the treatment of industrial wastes for the safe disposal, can be categorized into aerobic as well anaerobic process.

  1. True

  2. False
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation
Microorganisms already present in wastewater treatment feed on the complex substances in the wastewater, converting them into simpler substances, improving treatment. Biological wastewater treatment is the use of bacteria to degrade and decompose organic materials during treatment. The microbial community is the heart of any wastewater treatment facility. If the treatment system is having a problem, it’s critical to target and fix the root cause: A microbial community that isn’t performing well.
Due to their growth, adaptability, and resilience, wastewater treatment systems rely on microorganisms to degrade organic material and produce clear effluent water. By harnessing the ability of microorganisms to tackle the source of larger issues—degrading odor-causing compounds, for example—biological wastewater treatment offers major advantages over alternative treatment strategies:
Lower operating costs compared to alternatives. Efficient degradation and removal of organic and inorganic compounds. Improved flexibility to handle a wide range of wastewater characteristics and flows.
However, the key to any biological treatment system is ensuring that the existing microbial community has the right conditions to grow.

Multiple choice biology waste generation and management disposal of waste safe disposal of waste solid waste and its management

The total solid matter washed into the sea is approximately

  1. 300 million tonnes

  2. 1300 million tonnes

  3. 2300 million tonnes

  4. 3300 million tonnes
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Scientific estimates of the total solid matter transported by rivers into the oceans are generally cited around 300 million tonnes annually. This is a specific factual figure often found in environmental science textbooks.

Multiple choice biology waste generation and management disposal of waste safe disposal of waste solid waste and its management

Scrubbers were used 

  1. To make air free from microorganisms.

  2. To make air free from dust and gases.

  3. To make air free from solid particles.

  4. None of the above.
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Scrubbers are air pollution control devices used to remove harmful gases and particulate matter (dust) from industrial exhaust streams. They work by spraying a liquid to capture the pollutants.

Multiple choice biology waste generation and management disposal of waste safe disposal of waste solid waste and its management

What measures should be taken for waste disposal?

  1. Segregation of biodegradable and non-biodegradable wastes.

  2. Safe disposal of plastic bags.

  3. A compost pit for kitchen wastes.

  4. All of the above.
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation
Measures for disposal of wastes:
(a) Segregation of biodegradable and non-biodegradable wastes.
(b) Safe disposal of plastic bags.
(c) Vegetable/fruit peels can be placed near trees/plants, which on decomposition will enrich the soil with nutrients.
(d) Give paper wastes for recycling.
(e) Prepare a compost pit for kitchen wastes.
Multiple choice biology waste generation and management disposal of waste safe disposal of waste solid waste and its management

Use of sewage, domestic waste, farm yard manure, etc. will decrease the fertility of the degraded lands.

  1. True

  2. False

  3. Nither

  4. Either
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Organic waste, sewage, and manure are rich in nutrients and organic matter, which improve soil structure and fertility. Therefore, their application increases, rather than decreases, the fertility of degraded lands.

Multiple choice biology waste generation and management disposal of waste safe disposal of waste solid waste and its management

Why is improper disposal of waste a curse to environment?

  1. Wastes pollute our environment

  2. Waste has very harmful effect on the living organisms

  3. Waste decreases the fertility of the soil

  4. All of the above
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation
Improper disposal of waste pollutes our environment (air, water and soil). Improper waste storage or disposal frequently contaminates surface ground water supplies. The radioactive waste causes harmful effect on the living organism. The non-biodegradable waste decreases the microbial flora of the soil.
So, the correct answer is option D.
Multiple choice biology waste generation and management disposal of waste safe disposal of waste solid waste and its management

Which solid waste disposal mehod is cheaper and simpler?

  1. Pulverization

  2. Compositing

  3. Sanitary Landfilling

  4. Incineration
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Sanitary landfilling is cheaper and simpler than incineration or specialized recycling. It involves compacting waste in lined pits and covering with soil daily, requiring minimal infrastructure compared to other methods.

Multiple choice biology waste generation and management disposal of waste safe disposal of waste solid waste and its management

Which of the following are environmental friendly practices?

  1. Carrying cloth bags for shopping

  2. Switching off light and fans when not in use

  3. Using public transport

  4. All the above
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

All listed practices, including using cloth bags, conserving electricity, and utilizing public transport, reduce resource consumption and environmental impact. They are all recognized as environmentally friendly.