Advertisements
Advertisements
प्रश्न
Why do traffic assistants wear a mask on duty?
Advertisements
उत्तर
Traffic assistants are continually exposed to smoke emitted out from the vehicles. Inhaling the pollutants in the smoke may cause breathing and lung problems. So they wear a mask on duty.
APPEARS IN
संबंधित प्रश्न
Tick (√) the most appropriate answer.
The humans pollute the air by :
Classify Calcium oxide. Also give a balanced equation to prepare it.
Write ‘True’ or ‘False’ in front of following statement.
Enamelling is the process of baking a mixture of silicates on the surface of aluminium at a high temperature.
Give a reason why two different rare (inert) gases find application in advertisement signs and fluorescent bulbs.
Name the following:
The component of air which does not support combustion.
______ gas is given to the patients having breathing problems.
Soda bottle bursts sometimes when it is opened during summer. Why?
______ exists in nature as silicates, carbonates, oxides, and water. It also exists in a free state as part of the air in the atmosphere.
Nitrogen is an essential element present in proteins and nucleic acids which are the building blocks of living things.
Nitrogen gas is so cold that moisture in the air condenses on it, creating a dense fog.
