Assertion (A) : The water in Impounding Reservoirs is usually clear, but sometimes acquires a brownish coloration.
Reason (R) : This happens if the surrounding hills are covered with peat.
In the light of the above statements, choose the most appropriate answer from the options given below :
Impounding Reservoir Water Discoloration Analysis
This question assesses the understanding of water quality changes in impounding reservoirs, specifically concerning discoloration.
Statement Analysis
- Assertion (A): States that water in impounding reservoirs is typically clear but can sometimes become brownish. This is a common observation in natural water bodies.
- Reason (R): Attributes the brownish coloration to the presence of peat in the surrounding hills. Peat is organic matter that can decompose and release tannins and humic acids into the water.
Evaluating the Assertion and Reason
Peat soils are rich in organic compounds, such as humic and fulvic acids. When rainfall occurs or water flows from surrounding peat-covered hills into an impounding reservoir, these organic compounds can leach into the reservoir water. These compounds are known to impart a brownish or tea-like color to the water.
Therefore:
- Assertion (A) is factually correct; reservoirs can indeed experience brownish coloration.
- Reason (R) provides a scientifically valid cause for this discoloration. The leaching of organic matter, particularly humic substances from peat, is a primary reason for such color changes.
- Reason (R) directly explains why Assertion (A) occurs.
Conclusion
Both statements (A) and (R) are correct, and statement (R) correctly explains statement (A).
Result
The most appropriate answer is that both (A) and (R) are correct and (R) is the correct explanation of (A).
Important Questions from Basics of Environment
The Wild Life (Protection) Amendment Act, 2022 seeks to implement the Convention on International Trade in Endangered Species of Wild Fauna and Flora (CITES). Which of the following statements is correct about CITES?
1. CITES is an agreement between governments to ensure that international trade in the specimens of wild animals and plants does not threaten the survival of the species.
2. Under CITES, plant and animal specimens are classified into five categories based on the threat to their extinction.
3. The Convention requires countries to regulate the trade of all listed specimens through permits.
4. It also seeks to regulate the possession of live animal specimens.
Given below are two statements : One is labelled as Assertion (A) and the other is labelled as Reason (R):
Assertion (A): Green hydrogen production will be critical for world community to achieve carbon neutrality by the year 2050.
Reason (R): The energy content of hydrogen gas is much higher than that of coal.
In the light of the above statements. choose the correct answer from the options given below :
For drinking and irrigation purposes, the availability of suitable water out of earth’s total water supplies is about less than
Permafrost is defining characteristic of which biome?
Identify the features associated with Kyoto Protocol.
(A) Heavier burden on developed countries to cut down greenhouse gas emissions.
(B) International emissions trading.
(C) Nationally determined contributions.
(D) Clean Development Mechanism.
Choose the correct answer from the options given below:
