there are 4 different officials in badminton
Lots!
a badminton racket, a shuttlecock and sometimes people use a net
For badminton, you need at least two badminton racquets, shuttlecocks (or birdies), a net or badminton string, and proper clothing and tennis shoes.
Singles or doubles.
The better cardiovascular endurance you have the longer you can play for at your best, if you have a higher cardiovascular endurance than your opponent then you will be more likely to be succesful due to the fact your opponent will become more tired and make more frequent mistakes, thus you will have more oppertunities to be more successful in a game of badminton.
level 7+
oxygen and something else
What* 1 net 2/4 rackets 50 birdies
a shuttlecock and a racket and the players
Twelve minutes.
addition subtraction multiplication division