5.1. Parameters

Try these first

1. 1.

   What is the main use of freshwater globally?

   Hint

   Think about what agriculture needs water for.

2. 2.

   Name two types of irrigation methods.

   Hint

   One is very common and the other is known for being very efficient.

3. 3.

   What percentage of global freshwater withdrawal is used for agriculture?

   • 50%
   • 70%
   • 30%

   Hint

   Remember the main sectors using freshwater.

4. 4.

   True or False: Saline water can be used for irrigation without any management.

   • True
   • False

   Hint

   Think about the effect that salt has on plants.

5. 5.

   How would you manage competing demands for water in a region with both agricultural and power generation needs?

   Hint

   Think of how to optimize both agricultural production and power generation.

6. 6.

   Evaluate the potential impact of climate change on agricultural water requirements and availability.

   Hint

   Consider what happens to crop needs as rainfall becomes less reliable.