Question

Give reason
1) Venis have valves in them.
2) We should not play music system at full volume​

Answer 1

Answer:

1

2 no because the music of sound at full volume make more sick to more people.

Answer 2

1) VEINS HAVE VALVES IN THEM.

Unlike arteries, veins contain valves that ensure blood flows in only one direction. (Arteries don't require valves because pressure from the heart is so strong that blood is only able to flow in one direction.) Valves also help blood travel back to the heart against the force of gravity.

2) WE SHOULD NOT PLAY MUSIC SYSTEM AT FULL VOLUME.

The dangerous part is that you can lose it permanently if you listen to loud noise or music over and over again. ... Listening to loud music a lot can cause the same kind of damage, especially if headphones or ear buds are used.