UPSC Exam > UPSC Questions > Which of the following adds/add nitrogen to t...
Start Learning for Free
Which of the following adds/add nitrogen to the soil?
- Burning of coal by man
- Death of vegetation
- Excretion of urea by animals
Select the correct answer code.
- a)3 only
- b)1, 3
- c)2, 3
- d)1, 2, 3
Correct answer is option 'C'. Can you explain this answer?
Most Upvoted Answer
Which of the following adds/add nitrogen to the soil? Burning of coal ...
Burning of coal by man:
- Burning of coal by humans does not add nitrogen to the soil. Coal is primarily composed of carbon, and when burned, it releases carbon dioxide into the atmosphere, contributing to climate change and air pollution.
- Coal burning does not directly affect the nitrogen content in the soil.
Death of vegetation:
- The death of vegetation does contribute nitrogen to the soil through a process called nitrogen fixation.
- Nitrogen fixation is the process by which nitrogen gas from the atmosphere is converted into a usable form for plants and other organisms.
- When vegetation dies, the organic matter decomposes, and nitrogen-containing compounds are released into the soil.
- These compounds can be converted into forms such as ammonium (NH4+) or nitrate (NO3-), which can be readily absorbed by plants and used for growth.
Excretion of urea by animals:
- Animals excrete waste products, including urea, which contains nitrogen.
- Urea is a nitrogen-rich compound that is produced in the liver as a byproduct of protein metabolism.
- When animals urinate or defecate, the urea is deposited into the soil, adding nitrogen to the ecosystem.
- Urea can be broken down by soil microorganisms into ammonium and eventually converted into nitrate, which can be taken up by plants.
Conclusion:
- The correct answer is option 'C' (2, 3).
- The death of vegetation and the excretion of urea by animals are both processes that add nitrogen to the soil.
- Burning of coal by humans does not contribute to nitrogen levels in the soil.
- Burning of coal by humans does not add nitrogen to the soil. Coal is primarily composed of carbon, and when burned, it releases carbon dioxide into the atmosphere, contributing to climate change and air pollution.
- Coal burning does not directly affect the nitrogen content in the soil.
Death of vegetation:
- The death of vegetation does contribute nitrogen to the soil through a process called nitrogen fixation.
- Nitrogen fixation is the process by which nitrogen gas from the atmosphere is converted into a usable form for plants and other organisms.
- When vegetation dies, the organic matter decomposes, and nitrogen-containing compounds are released into the soil.
- These compounds can be converted into forms such as ammonium (NH4+) or nitrate (NO3-), which can be readily absorbed by plants and used for growth.
Excretion of urea by animals:
- Animals excrete waste products, including urea, which contains nitrogen.
- Urea is a nitrogen-rich compound that is produced in the liver as a byproduct of protein metabolism.
- When animals urinate or defecate, the urea is deposited into the soil, adding nitrogen to the ecosystem.
- Urea can be broken down by soil microorganisms into ammonium and eventually converted into nitrate, which can be taken up by plants.
Conclusion:
- The correct answer is option 'C' (2, 3).
- The death of vegetation and the excretion of urea by animals are both processes that add nitrogen to the soil.
- Burning of coal by humans does not contribute to nitrogen levels in the soil.
Free Test
FREE
| Start Free Test |
Community Answer
Which of the following adds/add nitrogen to the soil? Burning of coal ...
- Burning of coal by man is the main source of atmospheric carbon dioxide. It has nothing to do with adding nitrogen to the soil.
- Nitrogenous waste products of living organisms such as urea and dead remain of organisms are converted back into inorganic ammonia by the bacteria.
|
Explore Courses for UPSC exam
|
|
Top Courses for UPSCView all
Question Description
Which of the following adds/add nitrogen to the soil? Burning of coal by man Death of vegetation Excretion of urea by animalsSelect the correct answer code.a)3 onlyb)1, 3c)2, 3d)1, 2, 3Correct answer is option 'C'. Can you explain this answer? for UPSC 2025 is part of UPSC preparation. The Question and answers have been prepared according to the UPSC exam syllabus. Information about Which of the following adds/add nitrogen to the soil? Burning of coal by man Death of vegetation Excretion of urea by animalsSelect the correct answer code.a)3 onlyb)1, 3c)2, 3d)1, 2, 3Correct answer is option 'C'. Can you explain this answer? covers all topics & solutions for UPSC 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Which of the following adds/add nitrogen to the soil? Burning of coal by man Death of vegetation Excretion of urea by animalsSelect the correct answer code.a)3 onlyb)1, 3c)2, 3d)1, 2, 3Correct answer is option 'C'. Can you explain this answer?.
Which of the following adds/add nitrogen to the soil? Burning of coal by man Death of vegetation Excretion of urea by animalsSelect the correct answer code.a)3 onlyb)1, 3c)2, 3d)1, 2, 3Correct answer is option 'C'. Can you explain this answer? for UPSC 2025 is part of UPSC preparation. The Question and answers have been prepared according to the UPSC exam syllabus. Information about Which of the following adds/add nitrogen to the soil? Burning of coal by man Death of vegetation Excretion of urea by animalsSelect the correct answer code.a)3 onlyb)1, 3c)2, 3d)1, 2, 3Correct answer is option 'C'. Can you explain this answer? covers all topics & solutions for UPSC 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Which of the following adds/add nitrogen to the soil? Burning of coal by man Death of vegetation Excretion of urea by animalsSelect the correct answer code.a)3 onlyb)1, 3c)2, 3d)1, 2, 3Correct answer is option 'C'. Can you explain this answer?.
Solutions for Which of the following adds/add nitrogen to the soil? Burning of coal by man Death of vegetation Excretion of urea by animalsSelect the correct answer code.a)3 onlyb)1, 3c)2, 3d)1, 2, 3Correct answer is option 'C'. Can you explain this answer? in English & in Hindi are available as part of our courses for UPSC.
Download more important topics, notes, lectures and mock test series for UPSC Exam by signing up for free.
Here you can find the meaning of Which of the following adds/add nitrogen to the soil? Burning of coal by man Death of vegetation Excretion of urea by animalsSelect the correct answer code.a)3 onlyb)1, 3c)2, 3d)1, 2, 3Correct answer is option 'C'. Can you explain this answer? defined & explained in the simplest way possible. Besides giving the explanation of
Which of the following adds/add nitrogen to the soil? Burning of coal by man Death of vegetation Excretion of urea by animalsSelect the correct answer code.a)3 onlyb)1, 3c)2, 3d)1, 2, 3Correct answer is option 'C'. Can you explain this answer?, a detailed solution for Which of the following adds/add nitrogen to the soil? Burning of coal by man Death of vegetation Excretion of urea by animalsSelect the correct answer code.a)3 onlyb)1, 3c)2, 3d)1, 2, 3Correct answer is option 'C'. Can you explain this answer? has been provided alongside types of Which of the following adds/add nitrogen to the soil? Burning of coal by man Death of vegetation Excretion of urea by animalsSelect the correct answer code.a)3 onlyb)1, 3c)2, 3d)1, 2, 3Correct answer is option 'C'. Can you explain this answer? theory, EduRev gives you an
ample number of questions to practice Which of the following adds/add nitrogen to the soil? Burning of coal by man Death of vegetation Excretion of urea by animalsSelect the correct answer code.a)3 onlyb)1, 3c)2, 3d)1, 2, 3Correct answer is option 'C'. Can you explain this answer? tests, examples and also practice UPSC tests.
|
|
Explore Courses for UPSC exam
|
|
Signup for Free!
Signup to see your scores go up within 7 days! Learn & Practice with 1000+ FREE Notes, Videos & Tests.
|
© EduRev
|
Education Revolution
|
|
Signup to see your scores
go up
within 7 days!
within 7 days!
Takes less than 10 seconds to signup