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3 Cards in this Set
- Front
- Back
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4 ways that nitrogen is converted into nitrates are: |
1⃣Decay 2⃣Lightening 3⃣ Nitrogen fixing bacteria-plant roots 4⃣Soil |
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Environmental indicators |
•Living-Fresh water- good quality water (unpolluted) high leek of oxygen Mayflies are sensitive to the environment change. If it's polluted their numbers will fall Lichen-sensitive to air pollution-know air quality good because it grows there-different species of lichen Phytoplankton-microscopic organisms-live in water (oceans)-sensitive to temperature and get energy from the sun •Non-living-amount of nitrates in streams and lakes can cause environmental problems they dissolve in water. Temperature and amount of CO2 in the atmosphere PH-acid levels Scientist monitor environment to see if they are changing. To do this they use environmental indicators
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How can bitrogen get into soil naturally and Via humans? |
Process carried out by bacteria Plants have modules on their roots they contain bacteria and make use of nitrogen in air and turn it into nitrates. Excretion, death and decay of of plants and animals result it release of nitrates into soil. |
