Quiz · A Solar Farm in the Desert

Question 1What is the main topic of this talk?

How a desert solar farm works and why it matters How to build robots for cleaning houses Why coal power stations are closing down How cities get water in the desert

Question 2How many homes can the solar farm supply with electricity each year?

Eight thousand homes Eighteen thousand homes Eight hundred thousand homes Eighty thousand homes

Question 3Why does the cleaning system use soft brushes instead of water?

Because brushes clean the panels faster Because water is precious in the desert Because water damages the solar panels Because robots cannot carry heavy water