Answer: Double Bounce
One of the most confusing things about this game is the double bounce rule. After each serve, the teams must make a groundstroke before volleying the ball. A double bounce is different from the ball bouncing twice.
Explanation:
It contains 4 calories
Answer: D
A protein called haemoglobin in the red blood cells then carries the oxygen around your body. ... Blood without oxygen returns through the veins, to the right side of your heart. From there it is pumped to your lungs so that you can breathe out the carbon dioxide and breathe in more oxygen.
