Random (C10)

Question 1

List a variety of resources humans use for different purposes:

Answer 1

•Shelter
•Food
•Fuel for heating
•Fuel for transport
•Clothing

Question 2

Agricultural or synthetic products can be made in place of certain what resources?

Answer 2

Natural resources

Question 3

Example of a natural resources replaced by man-made polymers:

Answer 3

Rubber

Question 4

Some natural resources will eventually run out, meaning they are…?

Answer 4

Finite

Question 5

3 finite natural resources:

Answer 5

•Nuclear fuel
•Oil
•Coal

Question 6

Resources that reform at a similar or faster rate than we use them (e.g timber) are called what?

Answer 6

Renewable resources

Question 7

An assessment of the environmental impact of a product over each stage of its life, is called what?

Answer 7

Life cycle assessment

Question 8

What are the 4 stages in a life cycle assessment?

Answer 8

•Raw material
•Manufacturing/ packaging
•using product
•Product disposal

Question 9

Life cycle assessment for the 4 stages of the product: Plastic Bag.

Answer 9

•Crude oil
•Key compounds extracted via fractional distillation (waste has uses)
•Reusable
•Recyclable (not biodegradable tho)

Question 10

Life cycle assessment for the 4 stages of the product: Paper Bag.

Answer 10

•Timber
•Lot of energy to pulp timber (creates lots of waste)
•Single-use
•Biodegradable and recyclable

Question 11

What is Selective LCA (life cycle assessment)

Answer 11

Where some information has been removed to make a product look better (for positive advertising)

Question 12

Meeting the needs of the preeent society while not damaging future generations is called what?

Answer 12

Sustainable development

Question 13

In terms of “Reduce, Reuse, Recycle”, how does Reducing improve sustainability?

Answer 13

Reduce amount of raw materials used (mining them is bad for environment)

Question 14

In terms of “Reduce, Reuse, Recycle”, how does Reusuing improve sustainability?

Answer 14

Reuse Instead of throwing them away (less waste)

Question 15

In terms of “Reduce, Reuse, Recycle”, how does Recycling improve sustainability?

Answer 15

Recycle products that can’t be reused

Question 16

What human action reduces the amount of finite natural resources we’d need to extract?

Answer 16

Recycling and reusing

Question 17

Are copper ores finite?

Answer 17

Yes

Question 18

What two techniques improve sustainability by extracting from low grade (low yield) ores

Answer 18

Bio-leaching and phyto-mining

Question 19

Why are Low grade Ore sites used for Bioleaching and Phytomining?

Answer 19

Because it contains too little metal to make it economically worth using reduction

Question 20

What is the process of Bioleaching?

Answer 20

Flooding ore sites with bacteria that leach from the copper (which is from the soil) to produce a leachate solution

Question 21

What is contained in the soil within phytomining?

Answer 21

Copper

Question 22

How is copper leached from the soil in Bio-leaching?

Answer 22

By flooding it with bacteria

Question 23

How does bacteria leach the copper from the soil?

Answer 23

Bacteria converts copper compounds in ore to soluble copper compounds

Question 24

What is produced from Bioleaching?

Answer 24

A leachate solution

Question 25

What is the process of phytomining?

Answer 25

(Involves using plants to extract metals)- planted on low grade ore sites where roots absorb copper and are then burned ,=ash is rich in metal

Question 26

What to both Phytomining and Bio-leaching produce?

Answer 26

A solution of copper compounds

Question 27

What happens to the pure copper extracted (from both bio and phyto)

Answer 27

Electrolysis = a displacement reaction using scrap iron to displace the copper

Question 28

In Phytomining, what is the ash rich in?

Answer 28

Metals (copper)

Question 29

In Phytomining, where are the plants planted?

Answer 29

Low grade ore sites

Question 30

In Phytomining, how does the plant get copper?

Answer 30

Absorbed through roots