nitrogen gas

Nitrogen molecule consists of ......... nitrogen atoms

• one

• two

• three

• four

Nitrogen gas percentage is ......... of the air

• 21%

• 1%

• 0.03%

• 78%

the scientist who discovered nitrogen gas was .............

• Anders Celsius

• Danial Rutherford

• Joseph Priestley

• Antaine Lavoisier

the main source of nitrogen is .............

• air

• water

• plants

• all of the previous

............ is (are) colourless,odorless and tastless gas(es)

• Oxygen

• Nitrogen

• Carbon dioxide

• Oxygen and Nitrogen

Nitrogen gas is the most important gas as it forms carbohydrate substances

• true

• false

Nitrogen gas is called azote which means life

• true

• false

Nitrogen gas is hardly dissolves in water

• true

• false

................ is a chemical substance formed in the atmosphere as a result of combination between oxygen and nitrogen during lightning

• nitrogen dioxide

• azote

• nitrogen oxide

• protein

A specific type of bacteria live in roots of the legumes is a ..........

• nodular bacteria

• legumes

• clover

• nitrogen oxide