What can you ride to get good exercise and avoid producing harmful gases?
cows bike stairmaster cycles bus trolley Lift goats
A B C D E F G H
Bikes are good for exercise and produce no pollution.
Riding a bike is good exercise and also doesn't produce harmful gases.
What can you ride to get good exercise and avoid producing harmful gases? (A) cows (B) bike (C) stairmaster (D) cycles (E) bus (F) trolley (G) Lift (H) goats