The first team or player to score 21 points( or 11 if the opposing team remains scoreless) wins. a match is won by the first side to win two games. you can win the game on an ace in racquetball.
Answer: Maintain flexibility
Explanation: If you maintain flexibility throughout your life, then you'll have to stretch often in order to keep fit.
I think it is B because the other ones makes sense
Carbon dioxide, and Sulfur dioxide, because you have to know what gas are very dangerous and which ones arent........
