Question

Which of the following phenomenon enables us to drink a liquid through a straw?

• A. Humidity
• B. Temperature
• C. Atmospheric pressure
• D. Composition of air

Answer 1

The correct option is C

Atmospheric pressure

When a straw is used for drinking, air is expelled out from the straw due to which there is a decrease in the air pressure inside the straw. Therefore, the liquid in the container enters the straw, rises up and comes out from the straw. Thus, we are able to drink the juice/liquid using a straw.