A.) Valves, that’s the right answer
Answer:
Size of the court
Explanation:
In the game of tennis, there could be a singles match typically involving just two players, or a doubles tennis which involves four players. The rule modified for the doubles tennis is that a wider court is used since there are more players involved.
Each player can serve the tennis after the fourth game. The server and receiver can stand at any side of the court even though it is ideal that they maintain one side.
Answer:
The correct answer would be, Restrict the other team from doing goal.
Explanation:
Hockey is a game in which there are two teams, each of which consists of 11 players. Both teams have an area where teams have to mark goals. Both teams have their goal keepers in that area. Players play with each other by passing ball to other players of their own team and making it to the goal area of the other team to hit a goal to get a point. So if it seems impossible for a player to attempt a goal then he should at once change his strategy and has to play a game in which he just restricts the players of the other team from scoring a goal. In this way, if he is not able to mark a goal, the other team will also not get a chance to attempt the goal.
To hear heart rate............
The answer would be D because a doesn't make since then b and c increase so the answer has to be D