Question

When we heat water, we find bubbles forming in it. This shows that ___ .

• A. water contains air.
• B. air contains water.
• C. water itself converts into bubbles.
• D. water contains dissolved minerals.

Answer 1

The correct option is A

water contains air.

When the water is heated, bubbles are formed which move up the container towards the surface of the water and escape into the atmosphere. These bubbles are composed of air which is dissolved in water.