Take This Quiz On 'Nitrogen Cycle'!

The major reservoir of Nitrogen is _______.

Nitrogen is absorbed by the plants in the form of _______.

Among the following, which microorganism is a symbiotic Nitrogen-fixing microorganism?

What are the two major elements involved in biological Nitrogen fixation?

Plants and animals need nitrogen to make __________.

Conversion of ammonia to nitrite and then to nitrates is called ________.

Mention the role of decomposing bacteria in the nitrogen cycle:

Nitrogen makes up what percentage of the air?

The process of Nitrification happens in the _______.

The conversion of nitrates to nitrogen is called ________.

Is it possible for animals and plants to directly absorb nitrogen from the air?

Bacteria fix ________ from the atmosphere into a form plants can use.

__________ can transform nitrogen in the atmosphere into a usable form of nitrogen.

The conversion of organic nitrogen to ammonia is known as ________.

Can Plant absorb nitrogen-fixing bacteria?

What process allows organisms to use nitrogen?

Biological nitrogen fixation is the conversion of ________.

The nitrogen in the atmosphere is in the right form for living things to use.

Which of the following plants are helpful to the nitrogen cycle?

Free-living bacteria in the soil turn atmospheric nitrogen into ________.