C14 - The Earth's Resources Flashcards
1
Q
Define finite.
A
will run out
2
Q
Define infinite/renewable.
A
will not run out
3
Q
What can the Earth’s resources provide us with?
A
shelter, food, trnsprt, & fuel
4
Q
Name 2 types of resources.
A
- synthetic
- natural
5
Q
When choosing resources, what do we have to consider?
A
sustainable development
6
Q
Define sustainable development.
A
meeting current generations’ needs without compromising future generations’ needs
7
Q
Give an example of a finite resource.
A
fossil fuels
8
Q
Give an example a renewable resource.
A
wood
9
Q
Define potable water.
A
safe -> drink
10
Q
What does pure water have in it?
A
just H2O molecules
11
Q
What does potable water have in it?
A
- H2O molecules
- low lvls of salt
- safe lvls of harmful microbes
12
Q
What does sea water have it?
A
- H2O microbes
- dngrsly high lvls of salt
- (possible) high lvls of hrmfl microbes
13
Q
What does fresh water have in it?
A
- H2O mlcls
- low lvls of salt
- (often) high lvls of hrmfl micrbs
14
Q
How do you produce potable water in the UK?
A
- choose appropriate fresh water source
- pass H2O through filter beds -> remove lrg objects
- strlse water -> kill mcrbs using ozone, chlorine or UV light
15
Q
What do we use to sterilise water in the UK?
A
chlorine
