C10- Using Resources

Question 1

Natural resources

Answer 1

Come from eart, sea and air and form eithout human input

Question 2

Renwable resoucre

Answer 2

Form at similar rate to what they are used

Question 3

Finite (non-renewable resources)

Answer 3

Arent formed quickly enough to be considered replaceable

Question 4

How to help sustainability

Answer 4

Recylcing metals as metals take lots of energy to extract and glass

Question 5

Life cycle of products life

Answer 5

Getting raw materials, manufscutre and psckaging, snd using the product

Question 6

Problems with life cycle assessments

Answer 6

Can be bissed, used for positive sdvetising by inly showing some impacts of s products, hard to give effects of pollutsnt numerical value

Question 7

Ways to produced potable water

Answer 7

Filtration, sterilisations

Question 8

Test and purify a sample of water using distillation

Answer 8

1. Test pH of water if too high or low neutralise it by added acid or alkali
2. As water in flask heats up it will evaporaye entrr the condenser as steam
3. Drop of temperature inside condenser will cause steam to condense into liquid water
4. Collect water in besker and retest pH to check if neutral

Question 9

Sewage tretment stages

Answer 9

1. Sewage screened and large bitd of material removed
2. Undergoes sedimentsrion
3. Effluent in tank is removed by biological aerobic digestion
4. Sludge from bottom removed into large tank and broken down by bacteria in anaerobic digestion