Question

7. Answer in your own words.

2. Weather are the various constituents of air ? Write their uses.​

Answer 1

Answer:

Solution.

Constituents of air - Uses

Argon : Used in electric bulbs.

Heluim : Used for obtaining low temperatures.

Neon : Used in decorative lights and street lighting

Krypton. : Used in fluorescent light

Answer 2

Answer:

(Constituents of air) (Uses)

Oxygen: Necessary for respiration and combustion

CO2:Used by plants to make their foods. Used in fire extinguishers.

N2: Used in Nitrogen fixation by bacteria.

Helium Used for generating lifts in airships