using resources Flashcards
1
Q
what do humans use resources for
A
warmth’s shelter food resources
2
Q
what does synthetic mean
A
man made
3
Q
what is potable water
A
water that is safe to drink
4
Q
what is drinking water not chemically pure
A
contains dissolved substances
5
Q
what are 3 ways used to sterylise water
A
ozone,UV light and chlorine
6
Q
what is desalation
A
removing salt from water
7
Q
which methods can be used to carry out desalation
A
distillation, reverse osmosis
8
Q
what must be removed from sewage water before it can be released
A
organic matter, microbes and harmful chemicals
9
Q
what is a life cycle assessment
A
a way of assessing the environmental impacts of a product
10
Q
what is an ore
A
a rock that contained enough metal to make a profit
