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Question
The major reservoir of carbon on earth is ______.
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Solution
The major reservoir of carbon on earth is ocean.
Explanation:
Deep trenches in the ocean, and even ocean water in general, are high in dissolved carbon and organic matter, both of which act as carbon sources. Furthermore, the ocean is the largest carbon reservoir, driven by nutrient leaching and precipitation from land.
RELATED QUESTIONS
Common detritivores in our ecosystem are ______.
Distinguish between production and decomposition.
Define decomposition.
What is leaching?
Name the type of detritus that decomposes faster. List any two factors that enhance the rate of decomposition.
Write the different steps taken in humification and mineralisation during the process of decomposition.
The process of mineralization by microorganisms helps in the release of ______.
Find out the INCORRECT statement
What is common to earthworm, mushroom, soil mites and dung beetle in an ecosystem?
What could be the reason for the faster rate of decomposition in the tropics?
The rate of decomposition of detritus is affected by the abiotic factors like availability of oxygen, pH of the soil substratum, temperature etc. Discuss.
Assertion (A): Decomposition process is slower if detritus is rich in lignin and cutin.
Reason (R): Decomposition is largely an oxygen requiring process.
Observe the contents 1, 2, 3 and 4 of soil samples A, B and C shown in the graph. If the temperature and soil moisture of all soil samples are identical, which soil sample (s) will show faster decomposition?
1 indicates lignin content, 2 indicates chitin, 3 indicates nitrogen content, and 4 indicates sugar content
Identify the correct statements:
- Detrivores perform fragmentation.
- The humus is further degraded by some microbes during mineralization.
- Water soluble inorganic nutrients go down into the soil and get precipitated by a process called leaching.
- The detritus food chain begins with living organisms.
- Earthworms break down detritus into smaller particles by a process called catabolism.
Choose the correct answer from the option given below:
What is catabolism in the context of decomposition?
What is the primary distinction between fragmentation and catabolism?
What is mineralisation?
Which of the following correctly lists the five steps of decomposition in order?
Which of the following conditions inhibits decomposition?
Which climatic condition most strongly favours decomposition?
What is the primary reason lignin and chitin slow down decomposition?
