Nitrogen Cycle

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When fossil fuels are burned, excess nitrogen is in the atmosphere. This causes

What is the first thing that happens when too much nitrogen finds its way to a body of water like a pond or lake?

Which are key organisms in the nitrogen cycle?

Plants absorb usable nitrogen from the soil through the process of

What is the cause of eutrophication?

Our atmosphere is mostly made up of

There is nitrogen on an organism's waste and dead organisms. _________ break them down during denitrification.

Organisms cannot use nitrogen when it is in the