The Nitrogen Cycle

So this is a quiz on the Nitrogen cycle (Hence the title) and I find this subject really hard, so thought maybe a quiz would help it stick :)

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1. How much Nitrogen does the air contain? (Ok so maybe it's not VITAL for you to know this but can't hurt)

  • 78%
  • 76%
  • 70%
1 of 8

Other questions in this quiz

2. Why is Nitrogen so important?

  • Because it is needed for growth in plants and animals
  • Because it is needed for energy in plants and animals
  • Because it is needed for the mating of animals

3. Nitrogen-fixing bacteria converts atmospheric nitrogen into nitrites in the soil.

  • False
  • True

4. Nitrogen-fixing bacteria converts atmospheric nitrogen into nitrates in the soil.

  • True
  • False

5. Nitrifying bacteria...

  • Converts ammonium into nitrate in the soil
  • Converts nitrates into ammonium
  • Converts nitrates into atmospheric nitrogen

Comments

Sanah Iqbal

can someone please tell me why grass needs nitrogen compounds to grow

Swallowtail

A popular short quiz on the nitrogen cycle that could be tackled as a self test after revision or to show you what you need to look at again. Always make sure you can draw a simplified version of the nitrogen cycle as well as learning the key processes involved.

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