Tag: e-wastes

Questions Related to e-wastes

Human and animal excreta and sullage is known as

social science waste generation and management origin of waste products e-wastes waste generation waste and its types

  1. Food Waste

  2. Solid Waste

  3. Animal Waste

  4. Plant Waste

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Correct Option: B

Waste is said to be

social science waste generation and management origin of waste products e-wastes waste generation waste and its types

  1. Subjective

  2. Destructive

  3. Objectively inaccurate

  4. Both A and C

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Correct Option: D
Explanation:

The term waste is often subjective (because waste to one person is not necessarily waste to another) and sometimes objectively inaccurate (for example, to send scrap metals to a landfill is to inaccurately classify them as waste, because they are recyclable). 

How can you define waste?

social science waste generation and management origin of waste products e-wastes waste generation waste and its types

  1. Unused materials

  2. Discarded materials

  3. Unwanted or unusable materials

  4. None of these

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Correct Option: C

Proper management of natural resources ensures 

social science waste generation and management origin of waste products e-wastes waste generation waste and its types

  1. equitable distribution of natural resources

  2. sustainable development

  3. Both A and B

  4. contamination of environment

Show answer
Correct Option: C
Explanation:
  • Natural resource management refers to the management of natural resources such as land, water, soil, plants, and animals, with a particular focus on how management affects the quality of life for both present and future generations (stewardship)
  • Hence proper management of natural resources ensures equitable distribution of natural resources and sustainable development.
  • So, the correct answer is 'Both A and B'.

Waste are of two types, biodegradable and non-biodegradable.

social science waste generation and management origin of waste products e-wastes waste generation waste and its types

  1. True

  2. False

  3. Either

  4. Neither

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Correct Option: A
Explanation:

According to natural disposal, the pollutants may be biodegradable or nonbiodegradable.

1. Biodegradable Pollutants: These are quickly degraded by natural means. Sewage and heat are pollutants of this category. These pollutants are disposed of by microbial action and radiation respectively.

2. Nondegradable Pollutants: These are not degraded or are degraded slowly in nature. DDT, arsenic salts of heavy metals, glass or tin containers, radioactive materials, and plastics are the pollutants of this category. These pollutants accumulate and may get biologically magnified as they pass through the food chains.

So, the correct answer is 'True'.

Settle out portion of 'sewage' is known as

social science waste generation and management origin of waste products e-wastes waste generation waste and its types

  1. Dissolved solids

  2. Settleable Solids

  3. Colloidal Solids

  4. Suspended Solids

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Correct Option: B

Solid waste is also known as:

social science waste generation and management origin of waste products e-wastes waste generation waste and its types

  1. Refused Waste

  2. Food Waste

  3. Manure Waste

  4. Garbage Waste

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Correct Option: A

Organisms which breakdown dead or waste matter in to simpler substances is termed as

social science waste generation and management origin of waste products e-wastes waste generation waste and its types

  1. Producers

  2. Consumers

  3. Decomposers

  4. Scavengers

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Correct Option: C
Explanation:

Explanation: Organisms which breakdown dead or waste matter in to simpler substances is termed as Decomposer

Waste must be separated into ________ and _______.

social science waste generation and management origin of waste products e-wastes waste generation waste and its types

  1. Dry and wet

  2. Organic and inorganic

  3. Dry and organic

  4. Wet and inorganic

Show answer
Correct Option: A
Explanation:

Solid waste that are generated must be segregated as dry waste and wet waste. This would help in better treatment and disposal of waste.

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

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

  1. Copper

  2. Silver

  3. Gold

  4. Manganese

Show answer
Correct Option: A
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'