Question

Give a reason for the following.

Deep sea divers carry oxygen cylinders with them when they go under water.

Answer 1

• As we go in the depth of the sea the amount of oxygen available decreases which is known as hypoxia.
• There is no free oxygen in seawater, a little amount of dissolved oxygen is not used by sea divers for breathing.
• The decrease in oxygen level causes problems in the breathing of sea divers.

Hence, deep-sea divers carry oxygen cylinders with them to breathe underwater.