Date: Name:Water as a Resource Notes:
1. Fresh WaterImportant facts:Only _____________________ of the world’s water is fresh water.18% of the world’s surface fresh water is in the _____________________ _____________________.Most fresh water is either _____________________ or _____________________.
2. Why are we worried about water supply?The world’s population is constantly _____________________.Each person needs _____________________ _____________________ of water per day.In developed countries, most people use over _____________________ per day!Result: Groundwater and surface water resources are dwindling.
3. Problems with Population GrowthThe more people our planet has, the more _____________________ we need to grow.Result: More water is used to irrigate land for _____________________.Result: _____________________ _____________________ are _____________________ all over the world.
4. Why is depleting ground water resources dangerous?Farmers will have to rely in seasonal rains - farms will yield _________________ ________________.Poor countries with growing populations will depend on _____________________ of _____________________ for survival.Food will become _____________________ _____________________ and difficult to grow and buy
5. Threats to Surface WaterSurface water will always be present as it is renewed all the time by the _____________________ _____________________.However, the amount of surface water we can safely use is decreasing as a result of: _____________________
6. How is surface water polluted?Humans: _____________________, detergents and _____________________Agricultural: herbicides, _____________________, _____________________Industrial: _____________________, _____________________, waste
Date: Name:
7. Canada’s Role_____________________ and Halifax dump untreated sewage into the oceans.Pulp mills provide 50% of industrial waste in the Fraser River.
8. Consequences – SturgeonFish, such as _____________________, in the Fraser River are becoming endangered.You can no longer harvest sturgeon Recreational fishermen can still _____________________-and-_____________________ in the Fraser River.
9. Consequences – Beluga WhalesIn the St. Lawrence River, _____________________ _____________________ are declining in numbers.
10. Consequences – Algae and Weeds_____________________ and _____________________ are growing more oftenThis _____________________ the water’s oxygen and creates dead zones.http://www.theguardian.com/environment/2013/jul/04/china-algal-bloom-yellow-sea-green
11. Solutions conservation more efficient _____________________- _____________________ harvesting recycled water more efficient use at home (_____________________ _____________________ toilets) taxes on water use national policy to control use
