Air and its Constituents

What is the layer of air that covering the Earth?

• Atmospere

• Atomsphere

• Atmosphere

• Asmosphere

What layer of the atmosphere do we live in?

• exosphere

• troposphere

• stratosphere

• mesosphere

Which is NOT an important role of air?

• Urination

• Respiration

• Photosynthesis

• burning

In 1770, who was the prominent person who studied about oxygen and carbon dioxide?

• Joseph Lavoisier

• Antoine Lavoisier

• Antoine Priestly

• Joseph Priestly

Who is the Father of Modern Chemistry?

• Antoine Lavoisier

• Antoine Cavendish

• Henry Cavendish

• Henry Lavoisier

What is the most abundant kind of air in our atmosphere?

• Oxygen

• Hydrogen

• Helium

• Nitrogen

What percentage of our Atmosphere is Oxygen?

• 23

• 25

• 22

• 21

Refers to the presence of undesirable

substances in air which interferes with

human health or welfare, or produces

other harmful effects to the environment

(a)  

Which is not considered as a pollutant?

• Chlorofluorocarbons

• Dihydrogen Oxide

• Sulfur Oxide

• Nitrogen Dioxide

What is the main cause of air pollution?