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 of the following statements is correct?   

  1. There are working 'EcoSan' toilets in many areas of Kerala and Sri-Lanka

  2. Municipal solid wastes are wastes from homes, offices, stores, schools, hospitals, etc. that are collected and disposed by the municipality

  3. In a sanitary landfill, wastes are dumped in a depression or trench after compaction and covered with dirt everyday

  4. All of these
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation
EcoSan toilet has emerged as a sustainable concept and is prevalent in Delhi, Kerala, and Mumbai for footpath and slum dwellers. These are solid wastes from home, offices, stores, schools, hospitals, hotels etc. These domestic solid wastes one usually, thrown in municipal garbage collecting cans. a depression or trench is made in the ground and wastes are dumped into it after compaction and covered with dirt every day. the above statements are correct.

So, the correct answer is 'All of these'.
Multiple choice biology waste generation and management disposal of waste safe disposal of waste solid waste and its management

Which method is used if suitable dumping areas are not available?

  1. Incineration

  2. Compositing

  3. Pulverization

  4. Disposal into the Sea
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

When land is scarce or dumping areas are unavailable, incineration is the preferred method because it significantly reduces the volume of waste. This makes it ideal for urban areas with limited space.

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

The process of heating the waste at high temperature is called as ________.

  1. Land-filling

  2. Pyrolysis

  3. Decomposing

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

The scientific method of solid waste management where the waste is heated to high temperature. This process is beneficial for obtaining gas and electricity. The method is suitable for municipal solid waste management.

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

Solid matter from land washed annually into oceans is

  1. 330 million tonnes

  2. 3300 million tonnes

  3. 3.3 million tonnes

  4. 33 million tones
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Approximately 3300 million tonnes of solid matter from land is washed annually into oceans. Apart from the soil, glasses, metals and plastics are also washed into oceans. This matter spreads over the sea floor.

Thus, the correct answer is '3300 million tonnes.'

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

Steel, tin and copper are being substituted in many industries by

  1. Plastics

  2. Ceramics

  3. High strength glass fibres

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

Modern materials science has led to the substitution of traditional metals like steel and copper with plastics, ceramics, and high-strength glass fibers in various industrial applications due to their specific properties.

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 not being successful in India?

  1. Landfillings

  2. Compositing

  3. Sea Disposal

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

Landfilling is often unsuccessful in India due to the lack of properly engineered sanitary landfills, leading to open dumping, leachate issues, and environmental contamination. Other methods like composting have seen more localized success.

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

Which solid waste disposal method is simple and economical?

  1. Landfilling method

  2. Incineration method

  3. Compositing method

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

Landfilling is generally the most simple and economical method for solid waste disposal, especially when land is available. It requires minimal processing compared to incineration or pyrolysis.

Multiple choice commercial studies waste generation and management e-waste management e-wastes waste generation

Among these metals given below, which is the most valuable recyclable component of a printed circuit board?

  1. Copper

  2. Silver

  3. Gold

  4. Manganese
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation
Printed Circuit boards (PCB), also known as green boards are designed specifically to support and facilitate the connection of electronic components. PCB can be recycled. PCBs can be shredded, dismantled, and processed so that valuable precious metals and other materials are separated from other low-value materials.the copper part of the board is totally recyclable as a metallic material. Recycling PCB help reduce depletion of natural resources i.e. copper.
Hence answer is 'Copper'