2.7. Groundwater in the Global Budget

Try these first

1. 1.

   What percentage of global freshwater is represented by groundwater?

   Hint

   Think about how much of Earth's freshwater sources are underground.

2. 2.

   Name the two types of aquifers.

   Hint

   One type has pressure, while the other is more open.

3. 3.

   What percentage of global freshwater is groundwater?

   • 10%
   • 30%
   • 50%

   Hint

   Remember the key statistics related to water distribution.

4. 4.

   True or False: Unconfined aquifers are completely surrounded by impermeable rock.

   • True
   • False

   Hint

   Consider the definitions of aquifers you learned.

5. 5.

   Assuming a community's aquifer has an annual recharge rate of 50,000 cubic meters and a withdrawal rate of 70,000 cubic meters, calculate the annual balance and discuss the potential long-term impacts.

   Hint

   Consider how the ecosystem's health relies on maintaining a balance.

6. 6.

   Design a sustainable management plan for a region experiencing groundwater depletion, including regulations and community engagement strategies.

   Hint

   Think about both community actions and regulatory measures.