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Rivers & Environments ,[object Object],[object Object],[object Object],[object Object],[object Object]
Earth’s Water ,[object Object],[object Object],[object Object],[object Object]
Earth’s water 75% of Earth is Water 97% is saltwater 3% is  freshwater 99%  stored in glacier, Ice-sheet or  underground Only  1 %  is  Found in streams Lakes/ rivers
Singapore’s Water
What about Singapore? ,[object Object],[object Object],[object Object],[object Object],[object Object]
Recap: QUIZ ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Water Cycle
[object Object],[object Object],[object Object],[object Object]
Hydrologic cycle -  continuous movement of water, moving from Earth’s surface into the air and from air back to earth’s surface
Recap:
River System ,[object Object],[object Object],Tributaries
Drainage basin
Recap: Source Tributary Mouth Watershed Confluence
Do rivers simply flow through the whole course? ,[object Object],[object Object],[object Object]
Rivers doing work ,[object Object],[object Object],[object Object],[object Object],[object Object]
At the lower course ,[object Object],[object Object],[object Object],[object Object],[object Object]
Features formed from river ,[object Object]
At different course.
1. Valley ,[object Object]
2. Water fall ,[object Object]
3. Meanders ,[object Object]
4. Floodplains ,[object Object]
5.Delta ,[object Object]
Rivers and People ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

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Rivers & Environments