Question

During summer, Boojho carries water in a transparent plastic bottle to his school. One day he left his bottle in the school. The bottle still had some water left in it. The following day, he observed some water droplets on the inner surface of the empty portion of the bottle. These droplets of water were formed due to_________and ________

• A. Boiling and condensation
• B. Evaporation and Saturation
• C. Evaporation and Condensation
• D. Condensation and Saturation.

Answer 1

The correct option is C

Evaporation and Condensation

Evaporation is the process by which a liquid or solid is transformed into vapour.

Condensation is the process by which water vapour in the air is changed into liquid water.

• The water droplets were formed due to high temperatures in summers;
• The water gets heated in a plastic bottle and evaporates.
• This happens because the vapours reach the lid of the bottle and condense to form water droplets which get collected on the empty portion of the bottle.

Therefore, during summer, Boojho carries water in a transparent plastic bottle to his school. One day he left his bottle in the school. The bottle still had some water left in it. The following day, he observed some water droplets on the inner surface of the empty portion of the bottle. These droplets of water were formed due to evaporation and condensation