ഒരു ആവാസവ്യവസ്ഥയിലെ ഓർഗാനിക് തന്മാത്രകളുടെ രാസ ഊർജ്ജമായി പ്രകാശ ഊർജ്ജം പരിവർത്തനം ചെയ്യുന്ന നിരക്ക് ആണ് .....
Aനെറ്റ് പ്രാഥമിക ഉത്പാദനക്ഷമത
Bമൊത്ത പ്രാഥമിക ഉത്പാദനക്ഷമത
Cദ്വിതീയ ഉൽപ്പാദനക്ഷമത
Dമൊത്ത ദ്വിതീയ ഉൽപ്പാദനക്ഷമത.
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Related Questions:
Regarding the irrigation techniques used in the Nile valley, which statement is accurate?
- The Nile's overflow was stored in shallow basins for irrigation.
- Water-lifting devices were primarily powered by wind energy.
- The stored floodwater was used to cultivate crops only during the winter season.
Which statement about the supply of nitrogen and phosphorus in unmanaged ecosystems is incorrect?
- Most nitrogen and phosphorus for plant growth in unmanaged ecosystems is supplied by decomposition.
- The decomposition of plant litter and soil organic matter provides essential nutrients.
- In unmanaged ecosystems, external fertilization is the primary source of nitrogen and phosphorus.
How many major groups of forest types are identified in the Champion & Seth system for India?
Which of the following statements accurately describes wetlands?
- Wetlands are areas that are permanently or periodically covered by water.
- Wetlands can only be natural formations and cannot be artificial.
- The water in wetlands can be fresh, brackish, or saline.
- Wetlands are defined as lands saturated with water up to a depth of 10 meters.
Identify the correct statements regarding Periphyton.
- Periphyton are free-swimming organisms found in the open water.
- These organisms are typically found attached to or clinging to plant stems, leaves, or other submerged objects.
- Sessile algae and associated animal groups are examples of Periphyton.
- Periphyton are exclusively microscopic organisms.