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प्रश्न
How do human activities affect nitrogen cycle?
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उत्तर
Burning fossil fuels, application of nitrogen-based fertilizers, and other activities can increase the amount of biologically available nitrogen in an ecosystem.
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संबंधित प्रश्न
Define chemoautotrophs.
How is nitrogen replenished in atmosphere.
Very Short Answer Question:
What is denitrification?
The nitrogen molecules present in the air can be converted into nitrates and nitrites by
When we breathe in air, nitrogen also goes inside along with oxygen. What is the fate of this nitrogen?
Match Column - I with Column - II.
| Column - I | Column - II | ||
| (a) | Nitrococcus | (i) | Denitrification |
| (b) | Rhizobium | (ii) | Conversion of ammonia to nitrite |
| (c) | Thiobacillus | (iii) | Conversion of nitrite to nitrate |
| (d) | Nitrobacter | (iv) | Conversion of atmospheric nitrogen to ammonia |
Choose the correct answer from the options given below.
In the Nitrification process, the ammonium compounds are oxidised to soluble ______.
Nitrogen is an essential component of protein, DNA, and chlorophyll.
Assertion (A): Plants and animals can utilize atmospheric nitrogen.
Reason (R): The atmosphere is a rich source of nitrogen.
Which of the following statement is incorrect with regard to combustion?
