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The Nitrogen Cycle Crossword
This printable crossword puzzle on the topic of Ecology & Evolution has 10 clues. Answers range from 4 to 15 letters long. This crossword is also available to download as a Microsoft Word document or a PDF.
Description
What is 78% of the air made of?
What do plants use nitrogen to make?
One way for animals to get nitrogen compounds in their systems is?
How do plants get the nitrogen they need?
What do farmers add to the soil to add more nitorgen into the soil?
Step to make nitrogen useful to plants
the process of ammonium getting changed into nitrates by bacteria
How plants get nitrogen
the process of decomposers turning the nitrogen back into ammonium
the process of extra nitrogen getting released into the air
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