Water Quality 1

Sea water contains _____________% of the total amount of water in the Earth

• 18

• 50

• 75

• 97

Which one is NOT the cause of water pollution?

• Industries

• Agriculture

• Municipal waste

• Drinking

Only 10% from total amount of water in the Earth is fresh water

• True

• False

How do we determine the pollution level for a river?

• Using Water Quality Index (WQI)

• Using water meters

• Using aquatic lifes

• Using visual determination

Which of the following can be discharged into river?

• Plastic bottle

• Chemicals

• Food waste

• None of above

Ammoniacal nitrogen (AN) is a water quality parameter to measure nutrient in a water body

• True

• False

Chemical oxygen demand (COD) is the water quality parameter to measure how clear of the water body.

• True

• False

Global warming is the root cause of sea water level increases

• True

• False

Why agriculture fields use over 70% of water in our country?

• For irrigation purpose

• For crops processing purpose

• For cleaning purpose

• None of above

Which one is NOT the cause to river pollution in Malaysia?

• High density of human porpulation

• Industries

• Lacking of water treatment facilities

• Farming