FORESTRY
ECOLOGY AND ENVIRONMENT
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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the water cycle
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the carbon cycle
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the nitrogen cycle
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the hydrogen cycle
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Detailed explanation-1: -Some species of nitrogen-fixing bacteria are free-living in soil or water, while others are beneficial symbionts that live inside of plants.
Detailed explanation-2: -Nitrosomonas bacteria first convert nitrogen gas to nitrite (NO2-) and subsequently nitrobacter convert nitrite to nitrate (NO3-), a plant nutrient.
Detailed explanation-3: -The bacteria which help in nitrogen fixation are Azotobactor and Rhizobium. Some bacteria help to convert ammonia into nitrates. These are Nitrosomonas and Nitrobactor.
Detailed explanation-4: -Stage 5: Denitrification In the fifth stage of the nitrogen cycle, nitrogen returns to the air as nitrates are converted to atmospheric nitrogen (N2) by bacteria through the process we call denitrification.