Tag: waste generation

Quizzes (0) Questions (88)

Questions Related to waste generation

Multiple choice biology wastewater story origin of waste products waste generation waste and its types

______ is the most dangerous soil contaminant.

  1. Organic waste

  2. Radioactive waste

  3. Chemical fertilizer

  4. Both A and B
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Radioactive substances resulting from explosions of nuclear testing laboratories and industries giving rise to nuclear dust radioactive wastes, penetrate the soil and accumulate giving rise to land/soil pollution.

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

About how much in used or unwanted electronic items accumulates every year nationwide?

  1. $10,000$ tons
  2. $100,000$ tons
  3. $1$ million tons
  4. $2$ million tons
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Estimates for annual e-waste generation in the United States vary, but 2 million tons is a commonly cited figure in environmental studies regarding discarded electronic equipment.

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

Mark the correct statement about biomedical wastes.

  1. Hospitals wastes may include wastes like sharps, soiled waste, disposables, anatomical waste.
  2. It has been roughly estimated that of the $4 kg$ of waste generated in a hospital at least $1 kg$ would be infected.

  3. Biomedical wastes are in the form of disposable syringes, swabs, bandages, body fluids, human excreta, etc.

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

Biomedical waste includes various hazardous materials like sharps, infectious waste, and anatomical waste, all of which are correctly described in the options provided.

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

How are electronic items dangerous?

  1. They degrade over time, releasing cancer-causing chemicals into the air.

  2. Lead and mercury in components can cause metabolic changes in users.

  3. They lead toxic metals in landfills and into ground water.

  4. They create electromagnetic fields that interfere with animal reproduction.
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Electronic waste contains heavy metals such as lead, mercury, and cadmium. When improperly disposed of in landfills, these toxins can leach into the soil and contaminate groundwater.

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

Which country produces the most e-waste per year?

  1. Britain

  2. China

  3. India

  4. USA
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation
China produces the largest amount of e-waste per year. When computers, televisions, music systems and other electronic products reach the ends of their lives, they often end up in China or other developing countries as e-waste. Such waste is a serious environmental threat in these parts of the world because of the poorly regulated conditions under which the waste is dismantled.
Multiple choice commercial studies waste generation and management e-waste management e-wastes waste generation

Which toxic compound is not found in e-waste?

  1. Mercury

  2. Cadmium

  3. Neon

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

Substances found in large quantities include epoxy resins, fiberglass, PCBs, PVC (poly vinyl chlorides), thermosetting plastics, lead, tin, copper, silicon, beryllium, carbon, iron and aluminium. Elements found in small amounts include cadmium, mercury and thallium. Elements found in trace amounts include americium, antimony, arsenic, barium, bismuth, boron, cobalt, europium, gallium, germanium, gold, indium, lithium, manganese, nickel, niobium, palladium, platinum, rhodium, ruthenium, selenium, silver, tantalum, terbium, thorium, titanium, vanadium, and yttrium. Almost all electronics contain lead and tin (as solder) and copper (as wire and printed circuit board tracks), through the use of lead-free solder is now spreading rapidly. 

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

Waste from hospitals are known as 

  1. Industrial waste

  2. Biomedical waste

  3. Biomagnification

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

Any waste which is generated during the diagnosis, treatment or immunization of human beings or animals or in research activities pertaining thereto or in the production or testing of biologicals is called biomedical wastes.