China has a poor Eco system because of all the waste and bacteria in the water and air hence the reason it smells so bad there.
Answer:
biting you tongue hurts when it not on purpose because your body is ready to take the impact of you teeth and when its not on purpose, you tongue is soft and easy to cut through
Explanation:
Answer:
It is important to listen to your body when playing sports because your body can become dehydrated or too tired. These could cause you to pass out. If you feel thirsty, drink water. If you're tired, take a rest.
The cells in the heart need a constant supply of nutrients / oxygen and to get rid of their waste products ans that why it needs its own special circulatory system.
The heart is strengthend through cardiovascular exercise.
