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प्रश्न
A farmer harvests his crop and expresses his harvest in three different ways.
- I have harvested 10 quintals of wheat.
- I have harvested 10 quintals of wheat today in one acre of land.
- I have harvested 10 quintals of wheat in one acre of land, 6 months after sowing.
Do the above statements mean one and the same thing. If your answer is yes, give reasons. And if your answer is ‘no’ explain the meaning of each expression.
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उत्तर
No, the meaning of above statements is different
- In this statement, farmer gives information of only the quantity of the wheat but the area and time period is not given.
- In this statement, farmer gives information about primary production that is quantity and area but not the time period.
- In this statement, farmer gives information of primary productivity that is quantity, area and time period all are given.
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संबंधित प्रश्न
Common detritivores in our ecosystem are ______.
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.
Decomposition is slow detritus is rich in ______.
The process of mineralisation by micro organisms helps in the release of ______.
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?
Which organisms are primarily responsible for fragmentation in the decomposition process?
What is mineralisation?
Which climatic condition most strongly favours decomposition?
What is the primary reason lignin and chitin slow down decomposition?
Which step of decomposition makes nutrients available again to producers?
What characteristic of humus allows it to act as a nutrient reservoir?
How does the presence of water-soluble substances like simple sugars and proteins affect decomposition?
