Air pollution because your lungs will be affected by what is in the air the most
To preserve the momentum and therefore save enrgery.
1) Exercise it by singing and hitting different notes, however don't go overboard
2) Make sure you don't overuse your voice, as well as trying to rest your voice when you are sick
3) Overall, have healthy habits, like not smoking and drinking a sufficient amount of water.
Answer:
B
Explanation:
D would work also, but B is a more common sign of physical abuse.
Answer:
C. En la espalda con una almohada debajo del cuerpo
Explanation: