Question

Name the gases present in air and mention the role of two of its components​

Answer 1

Answer:

Nitrogen, Oxygen,carbon dioxide and small amount of water vapour,neon,argon and dust.

Explanation:

Nitrogen helps in maintaining the ph level of land and helps in growth of plants

Oxygen is needed for all living organisms and its helps in day to day activities of human

carbon dioxide is the basic for photosynthesis and it is injurious to human body

water vapour is needed in formation of rain

Answer 2

The gases presents in air

Explanation:

The composition of Air:

• Air is made up of 78.09% nitrogen, 20.95% oxygen, 0.93% argon, 0.04% carbon dioxide, and other gases in meager amounts.
• Water vapor is also a constituent of air in varying amounts along with dust particles.
• The molar mass of dry air or air with no/ low quantity of water vapor in it is 28.97g/ mol.

The components presents in Air

• The air in the atmosphere consists of nitrogen, oxygen, which is the life-sustaining substance for animals and humans, carbon dioxide, water vapor and small amounts of other elements ( argon, neon, etc...).

• Higher in the atmosphere air also contains ozone, helium and hydrogen.

The two main components of Air

• Standard dry air, which is mainly composed of three gases: nitrogen (about 78%), oxygen (about 21%), and argon (about 1%)
• Water vapor