Question

. Match the two columns.
Column A
1. Envelop of air
2. Oxygen
3. Carbon dioxide
4. Nitrogen
5. Water vapour

Column B
(i) Photosynthesis
(ii) Controls burning
(iii) Atmosphere
(iv) Gaseous form of water
(v) Supports combustion​

Answer 1

Answer:

Oxygen is required

Combustion

Nitrogen is used to prepare

Ammonia

CO2 is used in

photosynthesis

Argon is used

Electric Bulb

Water Vapour

Water cycle

Helium

Low temperatur

Answer 2

1) Envelop of air -
Atmosphere
2) Oxygen. -
supports burning
3) Carbon dioxide -
Controls burning
4) Nitrogen. -
Photosynthesis
5) Water vapor. -
Gaseous form of water

Hope it helps!