Water towers

This task is about forces and water supply.

Question 1Change answer

a)  Many small towns that are built on flat land have water towers like the one shown.
     Water is stored high up in the tower.
     What force is being used to help deliver water to the local houses? 

Question 1Change answer

b)  On some farms, windmills are used to pump water.
     What are two advantages of using a wind-powered pump compared to a petrol-powered pump?
1. 
2. 

Question 1Change answer

c)  Name one disadvantage of a wind-powered pump compared to a petrol-powered pump.