Class 5 Exam > Class 5 Questions > Which of the following statements is correct?...
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Which of the following statements is correct?
- a)Too much hunting increases the number of animals in forests.
- b)Using sewers and treatment plants to remove human waste help in reducing pollution.
- c)Carbon black in some aerosols increases the amount of heat reflected back by the earth.
- d)Burning coal, petroleum and natural gas release nitrogen, carbon dioxide and oxygen that trap heat in the earth.
Correct answer is option 'B'. Can you explain this answer?
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Which of the following statements is correct?a)Too much hunting increa...
Statement Analysis and Explanation:
Statement A: Too much hunting increases the number of animals in forests.
- This statement is incorrect. Hunting generally reduces the number of animals in forests, as it involves killing animals.
- Hunting can disrupt the natural balance of predator-prey relationships and lead to a decline in the population of certain species.
Statement B: Using sewers and treatment plants to remove human waste help in reducing pollution.
- This statement is correct.
- Sewers and treatment plants play a crucial role in removing human waste and treating it before it is released into the environment.
- This helps in reducing pollution, as untreated human waste can contain harmful pathogens and pollutants that can contaminate water sources and harm ecosystems.
Statement C: Carbon black in some aerosols increases the amount of heat reflected back by the earth.
- This statement is incorrect. Carbon black is a form of soot and is known to absorb heat rather than reflect it.
- The presence of carbon black in aerosols can contribute to global warming by absorbing solar radiation and trapping heat in the atmosphere.
Statement D: Burning coal, petroleum, and natural gas release nitrogen, carbon dioxide, and oxygen that trap heat in the earth.
- This statement is incorrect. Burning coal, petroleum, and natural gas release carbon dioxide (CO2) and other greenhouse gases, such as methane (CH4) and nitrous oxide (N2O).
- These greenhouse gases trap heat in the atmosphere, leading to the phenomenon known as global warming.
- Oxygen is not a greenhouse gas and does not directly trap heat.
Therefore, the correct statement is: B: Using sewers and treatment plants to remove human waste help in reducing pollution.
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Which of the following statements is correct?a)Too much hunting increases the number of animals in forests.b)Using sewers and treatment plants to remove human waste help in reducing pollution.c)Carbon black in some aerosols increases the amount of heat reflected back by the earth.d)Burning coal, petroleum and natural gas release nitrogen, carbon dioxide and oxygen that trap heat in the earth.Correct answer is option 'B'. Can you explain this answer?
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Which of the following statements is correct?a)Too much hunting increases the number of animals in forests.b)Using sewers and treatment plants to remove human waste help in reducing pollution.c)Carbon black in some aerosols increases the amount of heat reflected back by the earth.d)Burning coal, petroleum and natural gas release nitrogen, carbon dioxide and oxygen that trap heat in the earth.Correct answer is option 'B'. Can you explain this answer? for Class 5 2024 is part of Class 5 preparation. The Question and answers have been prepared according to the Class 5 exam syllabus. Information about Which of the following statements is correct?a)Too much hunting increases the number of animals in forests.b)Using sewers and treatment plants to remove human waste help in reducing pollution.c)Carbon black in some aerosols increases the amount of heat reflected back by the earth.d)Burning coal, petroleum and natural gas release nitrogen, carbon dioxide and oxygen that trap heat in the earth.Correct answer is option 'B'. Can you explain this answer? covers all topics & solutions for Class 5 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Which of the following statements is correct?a)Too much hunting increases the number of animals in forests.b)Using sewers and treatment plants to remove human waste help in reducing pollution.c)Carbon black in some aerosols increases the amount of heat reflected back by the earth.d)Burning coal, petroleum and natural gas release nitrogen, carbon dioxide and oxygen that trap heat in the earth.Correct answer is option 'B'. Can you explain this answer?.
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