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The table shows the oxygen level, number...

The table shows the oxygen level, numbers of green plants and of fish in rivers flowing through four towns. Wich town is most likely to be discharging untreated sewage?
`{:("Oxygen level","Green plants","Fish"),("(a) high","few","many"),("(b) high","many","many"),("(c) low","few","few"),("(d) low","many","few"):}`

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The correct Answer is:
C
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A passage is given with five questions following it. Read the passage carefully and select the best answer to each question out of the given four alternatives. The Ganges is one of the largest rivers in Asia. It rises in the Himalaya Mountains and flows over 2,500 km through India and Bangladesh into the Bay of Bengal. However, the Ganges, India's holy river, is also one of the most polluted in the world. The Ganges River basin has a size of over 1 million square km. It lies in one of the most populous regions on earth. About 500 million people, half of India's overall population, live in the Ganges river plains. There are many causes of Ganges river pollution. About 2 million Hindus bathe in the river every day. During religious ceremonies, up to a hundred million people clean their sins away in the Ganges River. They believe that bathing in the river will make them pure. In addition, thousands of bodies are cremated near the river, especially around the holy city, Varanasi. The ashes are often released into Ganges. The Ganges also provides water for farming land, which is increasing at a tremendous rate. Irrigation projects cause water levels to go down along the river. More and more dams are being erected along India's holy river, mainly to produce energy for Delhi and other large cities in the area. The river flows through 30 cities with a population of over 100,000 each. Every day, 3 billion litres of untreated water from these big cities pass into the Ganges River, along with remains of animals. Because of India's lax environmental regulations, industries along the river release chemicals and other poisonous material into the Ganges. In some places they are a thousand times over the allowed limit. Especially India's traditional leather industry needs great amounts of water. In addition, fertilizers from the fields find their way into the ground water, and ultimately flow into the river. Altogether, the amount of industrial pollution has doubled in the past 20 years This widespread pollution of the Ganges River has also led to major health problems. Many diseases are common, including cholera, hepatitis and diarrhea. While India's population keeps growing, more and more people are leaving the countryside and moving to big cities along the Ganges. As a result, the river will not be able to cope with even more people. Life in the river is also at risk. Recent reports have shown that there is a high level of mercury in some fish. The construction of dams is destroying forests and vegetation, killing off many animal and plants. Indian authorities are fighting an upward battle towards cleaning up the Ganges River. International organizations have offered help. The World Bank has agreed to give India a loan of up to a billion dollars to clean up the Ganges River. From which of the following neighbouring countries, The Ganga flow through India into Bay of Bengal?

A passage is given with five questions following it. Read the passage carefully and select the best answer to each question out of the given four alternatives. The Ganges is one of the largest rivers in Asia. It rises in the Himalaya Mountains and flows over 2,500 km through India and Bangladesh into the Bay of Bengal. However, the Ganges, India's holy river, is also one of the most polluted in the world. The Ganges River basin has a size of over 1 million square km. It lies in one of the most populous regions on earth. About 500 million people, half of India's overall population, live in the Ganges river plains. There are many causes of Ganges river pollution. About 2 million Hindus bathe in the river every day. During religious ceremonies, up to a hundred million people clean their sins away in the Ganges River. They believe that bathing in the river will make them pure. In addition, thousands of bodies are cremated near the river, especially around the holy city, Varanasi. The ashes are often released into Ganges. The Ganges also provides water for farming land, which is increasing at a tremendous rate. Irrigation projects cause water levels to go down along the river. More and more dams are being erected along India's holy river, mainly to produce energy for Delhi and other large cities in the area. The river flows through 30 cities with a population of over 100,000 each. Every day, 3 billion litres of untreated water from these big cities pass into the Ganges River, along with remains of animals. Because of India's lax environmental regulations, industries along the river release chemicals and other poisonous material into the Ganges. In some places they are a thousand times over the allowed limit. Especially India's traditional leather industry needs great amounts of water. In addition, fertilizers from the fields find their way into the ground water, and ultimately flow into the river. Altogether, the amount of industrial pollution has doubled in the past 20 years. This widespread pollution of the Ganges River has also led to major health problems. Many diseases are common, including cholera, hepatitis and diarrhea. While India's population keeps growing, more and more people are leaving the countryside and moving to big cities along the Ganges. As a result, the river will not be able to cope with even more people. Life in the river is also at risk. Recent reports have shown that there is a high level of mercury in some fish. The construction of dams is destroying forests and vegetation, killing off many animal and plants. Indian authorities are fighting an upward battle towards cleaning up the Ganges River. International organizations have offered help. The World Bank has agreed to give India a loan of up to a billion dollars to clean up the Ganges River. How many people (in million) clean their sins away in the Ganga River?

ARIHANT NEET-ENVIRONMENTAL ISSUES-Chapter exercises (A) Taking it together (Assorted Questions of the Chapter for Advanced Level Practice)
  1. Fly ash is environmental pollutant produced by

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  2. Most harmful type of environmental pollutants are

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  3. Which process does not result in the return of carbon dioxide to the a...

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  4. Which air pollutant could cause rains to be acidic?

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  5. Why does the oxygen concentration in the water decrease when sewae is ...

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  6. Ozone hole is the

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  7. Which of the following statements is incorrect?

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  8. How human activities increased the supply of fixed nitrogen available ...

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  9. Which of the following is not thought to be a possible consequence of ...

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  10. Ozone is

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  11. The destruction of the ozone layer is most directly linked to the

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  12. Eutrophication in lakes is the direct result of

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  13. Which of these show a result of deforestation and its effect on the en...

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  14. What is a long-term effect of cutting down larger areas of rainforests...

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  15. Some possible properties of modern insecticides are listed below. When...

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  16. A lake has been polluted by sewage. Compared with unpolluted water, th...

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  17. The table shows the oxygen level, numbers of green plants and of fish ...

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  18. In pollution, the term 'synergism' is used for

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  19. Ecological balance of a mining area is restored through

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  20. Lichens are organisms, which are very sensitive to air pollution. The ...

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