18.4.1. Surface Cover Methods

Try these first

1. 1.

   What is the primary purpose of surface cover methods in reservoirs?

   Hint

   Think about why water conservation is needed in reservoirs.

2. 2.

   Name one material used in floating covers.

   Hint

   It's a chemical that creates a thin film.

3. 3.

   What is the main benefit of using floating covers in reservoirs?

   • Increase evaporation
   • Reduce evaporation
   • Make water warmer

   Hint

   Think about what floating covers are specifically made to do.

4. 4.

   Floating plastic modules are mainly used to:

   • Increase evaporation
   • Decrease evaporation
   • Increase sunlight exposure

   Hint

   Their design is meant to lessen water exposure to elements.

5. 5.

   A reservoir loses 2.5 m of water due to evaporation annually. If a floating cover reduces this by 35%, how much water loss remains?

   Hint

   Apply percentage reduction to find the final value.

6. 6.

   Discuss the trade-offs between implementing deep reservoirs versus floating solar panels in an arid region's water management plan.

   Hint

   Weigh both short-term and long-term effects of each method.