Word Work

123456
Across
  1. 2. to do something good to balance a thing bad
  2. 4. fuels fuels made from infintie sources
  3. 6. dioxide a gas that is made when fuels are burned
Down
  1. 1. made in order to see how well a thing works
  2. 3. a thing that make stuff bad for us to use
  3. 5. to send out something.