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Which is correct matched ? 1. Arsenic po...

Which is correct matched ? 1. Arsenic poisoning -Black foot disease. 2. Secondary Effluent treatment-Biological process. 3. Pyrolysis -Solid soil waste disposal. 4. Tubifex -Water pollution indicator. 5. Biomagnification -Degradable pollutants.

A

I, IV , III and V

B

II, III,V and IV

C

I, II , IV and V

D

I, II, III and IV

Text Solution

AI Generated Solution

The correct Answer is:
To solve the question regarding which statement is correctly matched, we will analyze each option step by step: 1. **Arsenic poisoning - Black foot disease**: - Arsenic poisoning is indeed associated with black foot disease, which is characterized by peripheral vascular disease and is caused by chronic exposure to arsenic. - **Conclusion**: This statement is correct. 2. **Secondary Effluent treatment - Biological process**: - Secondary effluent treatment involves the biological breakdown of organic matter using microorganisms, primarily aerobic bacteria. This process is essential in wastewater treatment to reduce the biological oxygen demand (BOD). - **Conclusion**: This statement is correct. 3. **Pyrolysis - Solid soil waste disposal**: - Pyrolysis is a thermochemical decomposition of organic material at elevated temperatures in the absence of oxygen, which is used for waste disposal. However, it is more accurately described as a method for converting solid waste into gas, oil, and char rather than just disposal. - **Conclusion**: This statement is somewhat misleading but can be considered correct in the context of waste management. 4. **Tubifex - Water pollution indicator**: - Tubifex worms are indeed used as indicators of water pollution. Their presence often signifies polluted environments, as they thrive in low-oxygen conditions often found in contaminated water bodies. - **Conclusion**: This statement is correct. 5. **Biomagnification - Degradable pollutants**: - Biomagnification refers to the increasing concentration of non-degradable pollutants (like heavy metals and certain pesticides) as they move up the food chain. Degradable pollutants do not biomagnify. - **Conclusion**: This statement is incorrect. **Final Assessment**: The correct matched statements are 1, 2, 3, and 4. The incorrect statement is 5. **Answer**: The correct matched options are 1, 2, 3, and 4.
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