지시엣이 Chemistry > C10 - Using Resources > Flashcards

C10 - Using Resources Flashcards

(15 cards)

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1
Q

Do human help form natural resources?

A

No

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2
Q

Renewable resources

A

Resources that reform at a similar rate or faster than we use them

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3
Q

Finite resources

A

Resources that aren’t quickly formed to be considered resplaceable

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4
Q

Why does extracting resources have risks?

A
  • Loads of energy
  • Scars the environment
  • Produces lots of waste
  • Destroys habitats
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5
Q

What is sustainable development?

A

An approach to development that takes account of the needs to present society while not damaging future generations

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6
Q

Give examples of why copper rich ores are in short supply

A
  • Traditional methods of copper mining
  • Phytomining
  • Bioleaching
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7
Q

Why is recycling metal important?

A
  • Uses much less energy than is needed to mine and extract

- Cuts down on the amount of waste getting sent to landfill

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8
Q

How does glass recycling help sustainability?

A
  • Reduces the amount of energy needed to make new glass products
  • Glass bottles can often be used without reshaping
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9
Q

LCA

A

1) Getting the raw materials
2) Manufacturing and packaging
3) Using the product
4) Product Disposal

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10
Q

What are the problems with LCA?

A
  • LCA is not an objective method as it takes into account the values of the person carrying out the assessment
  • Selective LCAs can also be biased as the y can be written to deliberately support the claims of a company in order to give them positive advertising
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11
Q

Potable water

A

Water that has been treated or is naturally safe for humans to drink

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12
Q

Rainwater

A

A type of fresh water that doesn’t have much dissolved into it

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13
Q

What can be used to desalinate water?

A

Distillation

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14
Q

What can be used to test and purify a sample of water?

A

Distillation

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15
Q

What are some sources of waste water

A
  • Bathroom
  • Agricultural systems
  • Sewage
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