Define 10 % law . In class 10 science our environment?

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10% Law is the law which states that at each trophic level in a food chain their is a loss of 90% of the total energy present in the previous trophic level and only 10% of it reaches the next level as that 90% is used by the organism for it's own requirements like nutrition, respiration, excretion, reproduction etc.

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According to 10% law, only 10% of the energy entering a particular trophic level of organisms is available for transfer to the next higher trophic level.

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Ten Percent Law in Energy Transfer

https://edurev.in/studytube/ten-percent-law-in-energy-transfer/b7f4cafb-3367-4733-ac01-9b87e6ef7e3d_v

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10% Law given by Lindeman states that 10% energy is comsumed by organisms in each trophic level in a food chain...For eg...Plant(100 J)-Dear(10J)-Lion(1J)...

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10% Law in Our Environment

The 10% law is a fundamental principle in ecology that explains the transfer of energy between different trophic levels in an ecosystem. It states that only about 10% of the energy available at one trophic level is transferred to the next trophic level. This law applies to all ecosystems and is crucial in understanding the energy flow and dynamics within an ecosystem.

Explanation of the 10% Law

Energy Flow in Trophic Levels:
- Ecosystems consist of different trophic levels, which include producers (plants), primary consumers (herbivores), secondary consumers (carnivores), and so on.
- Producers, such as plants, obtain energy from sunlight through photosynthesis. They convert this energy into biomass, which is stored in their tissues.
- When herbivores consume plants, they obtain energy by breaking down the organic matter in their digestive systems.
- Similarly, carnivores obtain energy by consuming herbivores or other carnivores.

Energy Loss in Trophic Levels:
- As energy is transferred from one trophic level to the next, a significant amount of energy is lost in the form of heat during metabolic processes and respiration.
- Additionally, energy is lost through waste materials, such as feces and urine, as well as non-digestible parts of organisms.
- These energy losses reduce the amount of energy available for consumption by the next trophic level.

Efficiency of Energy Transfer:
- Due to the energy losses mentioned above, only around 10% of the energy from one trophic level is available to the next trophic level.
- This means that if a plant has 100 units of energy stored in its tissues, only 10 units of energy will be available to the herbivore that consumes it.
- Similarly, if a herbivore has 10 units of energy, only 1 unit of energy will be available to the carnivore that consumes it.

Significance of the 10% Law:
- The 10% law helps to explain the pyramid-like structure of energy flow in an ecosystem, where each trophic level has less energy available than the one below it.
- It also highlights the importance of maintaining a balanced ecosystem, as any disruption in one trophic level can have cascading effects on the entire food web.
- Understanding the 10% law is crucial for ecological studies, conservation efforts, and sustainable management of natural resources.

In conclusion, the 10% law in our environment explains the limited transfer of energy from one trophic level to the next in an ecosystem. It emphasizes the importance of energy conservation, the cascading effects of disruptions in trophic levels, and the need for sustainable practices to maintain a balanced ecosystem.

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