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Hot water discharged by industries is considered as a water pollutant because
1. Higher water temperature generally decreases the level of dissolved oxygen of water.
2. High temperature limits oxygen dispersion into deeper waters, contributing to anaerobic conditions in deep water.
Which of the above is/are correct?
1. Higher water temperature generally decreases the level of dissolved oxygen of water.
2. High temperature limits oxygen dispersion into deeper waters, contributing to anaerobic conditions in deep water.
Which of the above is/are correct?
- a)1 only
- b)2 only
- c)Both 1 and 2
- d)None
Correct answer is option 'C'. Can you explain this answer?
Most Upvoted Answer
Hot water discharged by industries is considered as a waterpollutant b...
High temperature causes water to expand and the water molecules are no longer held tightly. This causes oxygen to escape, leading to decrease in dissolved oxygen. When the oxygen dissolved is less, it cannot reach deeper waters leading to anaerobic conditions.
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Hot water discharged by industries is considered as a waterpollutant b...
Justification: Statement 1: Elevated temperature typically decreases
the level of dissolved oxygen of water. This can harm aquatic animals
such as fish, amphibians and other aquatic organisms.
Thermal pollution may also increase the metabolic rate of aquatic
animals, as enzyme activity, resulting in these organisms consuming
more food in a shorter time than if their environment were not changed.
Statement 2: Mixing of nutrients and oxygen in between water layers is
very much dependent on water temperatures. High temperature at the
top layer prevents proper mixing of water.
This can lead to increased bacteria levels when there is ample food
supply. Many aquatic species will fail to reproduce at elevated
temperatures.
Learning: Primary producers (e.g. plants, cyanobacteria) are affected
by warm water because higher water temperature increases plant growth
rates, resulting in a shorter lifespan and species overpopulation. This can
cause an algae bloom which reduces oxygen levels.
the level of dissolved oxygen of water. This can harm aquatic animals
such as fish, amphibians and other aquatic organisms.
Thermal pollution may also increase the metabolic rate of aquatic
animals, as enzyme activity, resulting in these organisms consuming
more food in a shorter time than if their environment were not changed.
Statement 2: Mixing of nutrients and oxygen in between water layers is
very much dependent on water temperatures. High temperature at the
top layer prevents proper mixing of water.
This can lead to increased bacteria levels when there is ample food
supply. Many aquatic species will fail to reproduce at elevated
temperatures.
Learning: Primary producers (e.g. plants, cyanobacteria) are affected
by warm water because higher water temperature increases plant growth
rates, resulting in a shorter lifespan and species overpopulation. This can
cause an algae bloom which reduces oxygen levels.
Q Source: Improvisation: Page 249: Science 8th NCERT
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Hot water discharged by industries is considered as a waterpollutant because1. Higher water temperature generally decreases the level ofdissolved oxygen of water.2. High temperature limits oxygen dispersion into deeper waters,contributing to anaerobic conditions in deep water.Which of the above is/are correct?a)1 onlyb)2 onlyc)Both 1 and 2d)NoneCorrect answer is option 'C'. Can you explain this answer?
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Hot water discharged by industries is considered as a waterpollutant because1. Higher water temperature generally decreases the level ofdissolved oxygen of water.2. High temperature limits oxygen dispersion into deeper waters,contributing to anaerobic conditions in deep water.Which of the above is/are correct?a)1 onlyb)2 onlyc)Both 1 and 2d)NoneCorrect answer is option 'C'. 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 Hot water discharged by industries is considered as a waterpollutant because1. Higher water temperature generally decreases the level ofdissolved oxygen of water.2. High temperature limits oxygen dispersion into deeper waters,contributing to anaerobic conditions in deep water.Which of the above is/are correct?a)1 onlyb)2 onlyc)Both 1 and 2d)NoneCorrect answer is option 'C'. Can you explain this answer? covers all topics & solutions for UPSC 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Hot water discharged by industries is considered as a waterpollutant because1. Higher water temperature generally decreases the level ofdissolved oxygen of water.2. High temperature limits oxygen dispersion into deeper waters,contributing to anaerobic conditions in deep water.Which of the above is/are correct?a)1 onlyb)2 onlyc)Both 1 and 2d)NoneCorrect answer is option 'C'. Can you explain this answer?.
Hot water discharged by industries is considered as a waterpollutant because1. Higher water temperature generally decreases the level ofdissolved oxygen of water.2. High temperature limits oxygen dispersion into deeper waters,contributing to anaerobic conditions in deep water.Which of the above is/are correct?a)1 onlyb)2 onlyc)Both 1 and 2d)NoneCorrect answer is option 'C'. 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 Hot water discharged by industries is considered as a waterpollutant because1. Higher water temperature generally decreases the level ofdissolved oxygen of water.2. High temperature limits oxygen dispersion into deeper waters,contributing to anaerobic conditions in deep water.Which of the above is/are correct?a)1 onlyb)2 onlyc)Both 1 and 2d)NoneCorrect answer is option 'C'. Can you explain this answer? covers all topics & solutions for UPSC 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Hot water discharged by industries is considered as a waterpollutant because1. Higher water temperature generally decreases the level ofdissolved oxygen of water.2. High temperature limits oxygen dispersion into deeper waters,contributing to anaerobic conditions in deep water.Which of the above is/are correct?a)1 onlyb)2 onlyc)Both 1 and 2d)NoneCorrect answer is option 'C'. Can you explain this answer?.
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Hot water discharged by industries is considered as a waterpollutant because1. Higher water temperature generally decreases the level ofdissolved oxygen of water.2. High temperature limits oxygen dispersion into deeper waters,contributing to anaerobic conditions in deep water.Which of the above is/are correct?a)1 onlyb)2 onlyc)Both 1 and 2d)NoneCorrect answer is option 'C'. Can you explain this answer?, a detailed solution for Hot water discharged by industries is considered as a waterpollutant because1. Higher water temperature generally decreases the level ofdissolved oxygen of water.2. High temperature limits oxygen dispersion into deeper waters,contributing to anaerobic conditions in deep water.Which of the above is/are correct?a)1 onlyb)2 onlyc)Both 1 and 2d)NoneCorrect answer is option 'C'. Can you explain this answer? has been provided alongside types of Hot water discharged by industries is considered as a waterpollutant because1. Higher water temperature generally decreases the level ofdissolved oxygen of water.2. High temperature limits oxygen dispersion into deeper waters,contributing to anaerobic conditions in deep water.Which of the above is/are correct?a)1 onlyb)2 onlyc)Both 1 and 2d)NoneCorrect answer is option 'C'. Can you explain this answer? theory, EduRev gives you an
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