Chap 7 and 8 NT Revision

What are the 4 National Taps?

• water from local catchment, Old water, exported water and desalinated water

• water from local catchment, Newater, imported water and desalinated water

• water from offshore catchment, Newater, exported water and desalinated water

• water from offshore catchment, Newater, imported water and desalinated water

What process is used to remove salt from seawater and turn it into drinking water?

• Filtration

• Chromatography

• Desalination

• Magnetic separation

Newater is produced by recycling ____ water

Which is not a source of water pollution

• untreated sewage and industrial waste

• litter

• oil spill

• pesticides and fertilisers

• car exhaust

Litter such as plastics, rubber and metal containers thrown into the water bodies threaten the survival of animals. This is because turtles get ------- in the litter.

Collision between ships or leakage from vessels can cause --- spills to occur which will reduce the amount of air entering the water.

Runoff containing fertilisers can cause ----- [something green] to grow rapidly in the water.

What does the PSI level of above 300 indicates

• Good

• Moderate

• Unhealthy

• Hazardous

Carbon monoxide is formed when there is ---------- burning of fossil fuels

What type of gas is formed at high temperatures in the hot engines of motor vehicles?

• Nitrogen oxides

• Sulfur dioxide

• Hydrogen

• Oxygen