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Notes and Questions: Aqa Gcse

1. The document discusses various topics related to using the Earth's resources sustainably, including natural and finite resources, producing potable water, sewage treatment, and alternative metal extraction methods. 2. It asks a series of questions about defining sustainable development, comparing finite and renewable resources, describing the processes of obtaining potable water from various sources, and the stages of sewage treatment. 3. Alternative metal extraction methods discussed include phytomining, bioleaching, and two methods for obtaining copper from bioleachate, as low-grade copper ores are increasingly used due to limited high-grade ore resources.

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126 views13 pages

Notes and Questions: Aqa Gcse

1. The document discusses various topics related to using the Earth's resources sustainably, including natural and finite resources, producing potable water, sewage treatment, and alternative metal extraction methods. 2. It asks a series of questions about defining sustainable development, comparing finite and renewable resources, describing the processes of obtaining potable water from various sources, and the stages of sewage treatment. 3. Alternative metal extraction methods discussed include phytomining, bioleaching, and two methods for obtaining copper from bioleachate, as low-grade copper ores are increasingly used due to limited high-grade ore resources.

Uploaded by

api-422428700
Copyright
© © All Rights Reserved
We take content rights seriously. If you suspect this is your content, claim it here.
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AQA GCSE

Notes and Questions

Using Resources
Using the Earth’s Resources and Sustainable Development:

1. List some of the reasons


humans use the Earth’s
resources

2. What do natural resources provide?

3. What do finite resources provide?


Chemistry plays an important role in improving

a_______________ and i___________ processes to provide new

p_________ and in s___________ d_____________.

4. What is sustainable development?

5. Give examples of natural products that have been


either supplemented by agriculture or replaced by
synthetic products?

6. What is the difference between finite and renewable


resources?
Potable Water

Water of appropriate quality is essential for

l____.

7. Drinking water for humans should have what properties.

8. What do we call water that is safe to drink.?

The methods used to produce p_________ water depend on the

available supplies of water and local conditions.

In the United Kingdom, r_______ provides water with low

levels of d____________ substances ( f_________ water) that

collects in the g________ and in l________ and r_________.


9. Describe using a flow chart and diagrams the three main
stages required to produce potable water.
If supplies of f_______ water are limited, d____________ of

salty water or s______ water may be required.

10. Describe, using diagrams, the two main processes for


obtaining water from salt water?

11. What is the major drawback with both of these


processes.
Urban lifestyles and industrial processes produce large amounts

of w________ water that require t__________ before being

released into the e__________.

12. Sewage and agricultural waste water require the


removal of what?

13. Industrial waste water requires the removal of what?


14. Use the diagram above to identify the main stages of
sewage treatment?
Alternative methods of extracting metals.

The Earth’s resources of m________ ores are limited. Especially

those containing c________.

15. What are the issues with the traditional methods of


extracting c___________?

16. What name is given to an ore that does not contain


enough metal to make it worth extracting by traditional
methods.?

17. Name two methods of extracting c_________ from


these types of ore?
18. Describe how phytomining works?
19. Describe how bioleaching works?
20. Describe and draw diagrams to show how the copper is
obtained from the leachate (NB There are two methods)?

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