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Process of Decomposition Video Lecture | Biology Class 12 - NEET

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FAQs on Process of Decomposition Video Lecture - Biology Class 12 - NEET

1. What is the process of decomposition?
Ans. The process of decomposition refers to the natural breakdown of organic matter by the action of bacteria, fungi, and other microorganisms. It involves the breaking down of complex organic compounds into simpler substances, such as carbon dioxide, water, and minerals, which can be recycled back into the environment.
2. What factors influence the rate of decomposition?
Ans. Several factors can influence the rate of decomposition, including temperature, moisture, oxygen availability, nutrient availability, and the type of organic material. Warmer temperatures and higher moisture levels generally accelerate decomposition, while lack of oxygen or nutrients can slow down the process.
3. How long does it take for different materials to decompose?
Ans. The time it takes for different materials to decompose can vary significantly. For example, organic materials like fruits and vegetables can decompose within weeks, while items such as paper and cardboard may take several months. On the other hand, materials like plastic and glass can take several hundred years or even thousands of years to decompose fully.
4. What are the stages of decomposition?
Ans. Decomposition typically occurs in several stages: fresh, bloat, active decay, advanced decay, and dry remains. During the fresh stage, the body starts to cool down and rigor mortis sets in. The bloat stage involves the accumulation of gases, causing the body to swell. In the active decay stage, the body's tissues break down, leading to strong odors. Advanced decay is characterized by the remaining bones and hair, while the dry remains stage involves the complete drying out of the body, leaving only bones and hair behind.
5. How does decomposition contribute to nutrient recycling?
Ans. Decomposition plays a crucial role in nutrient recycling. As organic matter decomposes, it releases essential nutrients, such as nitrogen, phosphorus, and potassium, back into the soil. These nutrients are then available for plants and other organisms to use for growth and development. Without decomposition, the nutrients would remain locked in dead organic matter and unavailable for the rest of the ecosystem.
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