Water Quick Facts

Question 1

5.1a Is the water cycle and open or closed system? And what are the driving forces behind that system?

Answer 1

Closed- no water enters or leaves it

gravity and solar

Question 2

5.1b How big is the ocean water store compared to freshwater?

Answer 2

oceans are twice the size of any other store and there is less than 1% of freshwater readily available for human use

Question 3

5.1c What is the residence time for oceans compares to rivers? Also, how much groundwater is replenished in 50yrs?

Answer 3

3,000- 3,230yrs compared to 2- 6months

less than 6%