Clean or polluting?

Exercise and reference answers

Left

Clean to run

Items

1. Item

   Solar

   Answer

   Clean to run

2. Item

   Wind

   Answer

   Clean to run

3. Item

   Hydro

   Answer

   Clean to run

4. Item

   Petroleum

   Answer

   Polluting

5. Item

   Coal

   Answer

   Polluting

6. Item

   Fuel wood

   Answer

   Polluting

Right

Polluting

Instructions

Swipe each energy source to whether burning it pollutes.