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As per the National Aeronautics and Space Administration (NASA)
research scientists found that concentrations of mercury near
the ground level had increased in the Arctic Sea by mercury-
pumping reaction which takes place because -
1. The open water in the land is much warmer than the air above it.
2. of the temperature difference, the air above the lead churns like
the air above a boiling pot.
3. the mixing is so strong that it pulls down mercury from a
the higher layer of the atmosphere to near the surface.
Select the answer from the codes given below-
- a)1 only
- b)1 and 2 only
- c)2 and 3 only
- d)All of the above
Correct answer is option 'D'. Can you explain this answer?
Most Upvoted Answer
As per the National Aeronautics and Space Administration (NASA)resear...
- Almost all of the mercury in the Arctic atmosphere is transported there in gaseous form from sources in areas farther south, from sources such as wildfires, coal-burning and gold mining.
- Scientists have long known that mercury in the air near ground level undergoes complex chemical reactions that deposit the element on the surface.
- Once the mercury is completely removed from the air, these reactions stop. However, this newly discovered mixing ice forces down additional mercury to restart and sustains the reactions.
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Community Answer
As per the National Aeronautics and Space Administration (NASA)resear...
Explanation:
1. Open Water in the Land is Much Warmer than the Air Above It:
- The open water in the Arctic Sea tends to be warmer compared to the frigid air above it due to various factors such as sunlight absorption and heat retention.
- This temperature difference creates an environment where the air above the water is warmer and leads to unique atmospheric conditions.
2. Temperature Difference Causes Air Churning:
- The significant temperature contrast between the open water and the cold air above it causes the air to churn, much like the air above a boiling pot.
- This churning motion contributes to the mixing of different layers of the atmosphere, leading to the redistribution of various substances present in the air.
3. Strong Mixing Pulls Down Mercury:
- Due to the intense mixing caused by the temperature difference, the air in the Arctic Sea region pulls down mercury from the higher layers of the atmosphere to near the surface.
- This process results in increased concentrations of mercury near the ground level, posing potential environmental and health risks to the Arctic ecosystem.
In conclusion, the combination of warm open water, temperature-induced air churning, and strong mixing in the Arctic Sea region leads to the pumping of mercury from higher atmospheric layers to the surface. This phenomenon highlights the complex interactions between environmental factors and atmospheric processes in the Arctic region, emphasizing the need for further research and monitoring to understand and mitigate potential impacts.
1. Open Water in the Land is Much Warmer than the Air Above It:
- The open water in the Arctic Sea tends to be warmer compared to the frigid air above it due to various factors such as sunlight absorption and heat retention.
- This temperature difference creates an environment where the air above the water is warmer and leads to unique atmospheric conditions.
2. Temperature Difference Causes Air Churning:
- The significant temperature contrast between the open water and the cold air above it causes the air to churn, much like the air above a boiling pot.
- This churning motion contributes to the mixing of different layers of the atmosphere, leading to the redistribution of various substances present in the air.
3. Strong Mixing Pulls Down Mercury:
- Due to the intense mixing caused by the temperature difference, the air in the Arctic Sea region pulls down mercury from the higher layers of the atmosphere to near the surface.
- This process results in increased concentrations of mercury near the ground level, posing potential environmental and health risks to the Arctic ecosystem.
In conclusion, the combination of warm open water, temperature-induced air churning, and strong mixing in the Arctic Sea region leads to the pumping of mercury from higher atmospheric layers to the surface. This phenomenon highlights the complex interactions between environmental factors and atmospheric processes in the Arctic region, emphasizing the need for further research and monitoring to understand and mitigate potential impacts.
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As per the National Aeronautics and Space Administration (NASA)research scientists found that concentrations of mercury nearthe ground level had increased in the Arctic Sea by mercury-pumping reaction which takes place because -1. The open water in the land is much warmer than the air above it.2. of the temperature difference, the air above the lead churns likethe air above a boiling pot.3. the mixing is so strong that it pulls down mercury from athe higher layer of the atmosphere to near the surface.Select the answer from the codes given below-a) 1 onlyb) 1 and 2 onlyc) 2 and 3 onlyd) All of the aboveCorrect answer is option 'D'. Can you explain this answer?
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As per the National Aeronautics and Space Administration (NASA)research scientists found that concentrations of mercury nearthe ground level had increased in the Arctic Sea by mercury-pumping reaction which takes place because -1. The open water in the land is much warmer than the air above it.2. of the temperature difference, the air above the lead churns likethe air above a boiling pot.3. the mixing is so strong that it pulls down mercury from athe higher layer of the atmosphere to near the surface.Select the answer from the codes given below-a) 1 onlyb) 1 and 2 onlyc) 2 and 3 onlyd) All of the aboveCorrect answer is option 'D'. Can you explain this answer? for UPSC 2025 is part of UPSC preparation. The Question and answers have been prepared according to the UPSC exam syllabus. Information about As per the National Aeronautics and Space Administration (NASA)research scientists found that concentrations of mercury nearthe ground level had increased in the Arctic Sea by mercury-pumping reaction which takes place because -1. The open water in the land is much warmer than the air above it.2. of the temperature difference, the air above the lead churns likethe air above a boiling pot.3. the mixing is so strong that it pulls down mercury from athe higher layer of the atmosphere to near the surface.Select the answer from the codes given below-a) 1 onlyb) 1 and 2 onlyc) 2 and 3 onlyd) All of the aboveCorrect answer is option 'D'. Can you explain this answer? covers all topics & solutions for UPSC 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for As per the National Aeronautics and Space Administration (NASA)research scientists found that concentrations of mercury nearthe ground level had increased in the Arctic Sea by mercury-pumping reaction which takes place because -1. The open water in the land is much warmer than the air above it.2. of the temperature difference, the air above the lead churns likethe air above a boiling pot.3. the mixing is so strong that it pulls down mercury from athe higher layer of the atmosphere to near the surface.Select the answer from the codes given below-a) 1 onlyb) 1 and 2 onlyc) 2 and 3 onlyd) All of the aboveCorrect answer is option 'D'. Can you explain this answer?.
As per the National Aeronautics and Space Administration (NASA)research scientists found that concentrations of mercury nearthe ground level had increased in the Arctic Sea by mercury-pumping reaction which takes place because -1. The open water in the land is much warmer than the air above it.2. of the temperature difference, the air above the lead churns likethe air above a boiling pot.3. the mixing is so strong that it pulls down mercury from athe higher layer of the atmosphere to near the surface.Select the answer from the codes given below-a) 1 onlyb) 1 and 2 onlyc) 2 and 3 onlyd) All of the aboveCorrect answer is option 'D'. Can you explain this answer? for UPSC 2025 is part of UPSC preparation. The Question and answers have been prepared according to the UPSC exam syllabus. Information about As per the National Aeronautics and Space Administration (NASA)research scientists found that concentrations of mercury nearthe ground level had increased in the Arctic Sea by mercury-pumping reaction which takes place because -1. The open water in the land is much warmer than the air above it.2. of the temperature difference, the air above the lead churns likethe air above a boiling pot.3. the mixing is so strong that it pulls down mercury from athe higher layer of the atmosphere to near the surface.Select the answer from the codes given below-a) 1 onlyb) 1 and 2 onlyc) 2 and 3 onlyd) All of the aboveCorrect answer is option 'D'. Can you explain this answer? covers all topics & solutions for UPSC 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for As per the National Aeronautics and Space Administration (NASA)research scientists found that concentrations of mercury nearthe ground level had increased in the Arctic Sea by mercury-pumping reaction which takes place because -1. The open water in the land is much warmer than the air above it.2. of the temperature difference, the air above the lead churns likethe air above a boiling pot.3. the mixing is so strong that it pulls down mercury from athe higher layer of the atmosphere to near the surface.Select the answer from the codes given below-a) 1 onlyb) 1 and 2 onlyc) 2 and 3 onlyd) All of the aboveCorrect answer is option 'D'. Can you explain this answer?.
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