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Consider the following statements about Ozone:
1. It can only be formed naturally in the atmosphere.
2. In the stratosphere, it forms a shield protecting us from the UV radiation of the sun.
3. Ozone is not found in the troposphere.
How many of the above statements are correct?
1. It can only be formed naturally in the atmosphere.
2. In the stratosphere, it forms a shield protecting us from the UV radiation of the sun.
3. Ozone is not found in the troposphere.
How many of the above statements are correct?
- a)Only one
- b)Only two
- c)All three
- d)None
Correct answer is option 'A'. Can you explain this answer?
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Most Upvoted Answer
Consider the following statements about Ozone:1. It can only be formed...
- Ozone is a gas composed of three atoms of oxygen. It occurs both in the Earth’s upper atmosphere and at ground level. Depending on its location in the atmosphere, it can be good or bad.
- Stratospheric ozone is formed naturally through the interaction of solar ultraviolet (UV) radiation with molecular oxygen (O2). Here, it forms the "ozone layer," which is approximately 6-30 miles above the Earth's surface. This layer shields us from the harmful UV radiation emanating from the sun. Hence, statement 2 is correct.
- In the troposphere, ozone is formed when heat and sunlight cause chemical reactions between oxides of nitrogen (NOX) and Volatile Organic Compounds (VOC), which are also known as Hydrocarbons. This reaction can occur both near the ground and high in the atmosphere. This ground Ozone is the “bad” ozone and is a secondary air pollutant. It damages crops, trees, and other vegetation and caused severe health problems. Hence statement 3 is not correct.
- In both these processes, Ozone is formed naturally. However, it can also be artificially produced, so that it can be used for water treatment. Ozone generators can create ozone artificially by means of extremely high voltages or by means of UV light. Both methods involve the decomposition of the oxygen molecule. Hence statement 1 is not correct.
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Community Answer
Consider the following statements about Ozone:1. It can only be formed...
Explanation:
The correct answer is option 'A' - Only one. Let's analyze each statement one by one.
Statement 1: It can only be formed naturally in the atmosphere.
This statement is incorrect. While it is true that ozone can be formed naturally in the atmosphere, it can also be formed through human activities. Ozone is formed naturally in the atmosphere through the process of photolysis, where oxygen molecules (O2) are broken down by the sun's ultraviolet (UV) radiation. However, ozone can also be formed as a result of human activities, such as emissions from industrial processes and the burning of fossil fuels.
Statement 2: In the stratosphere, it forms a shield protecting us from the UV radiation of the sun.
This statement is correct. Ozone is mainly found in the stratosphere, which is the layer of the Earth's atmosphere located above the troposphere. In the stratosphere, ozone molecules absorb and scatter the majority of the sun's ultraviolet (UV) radiation, particularly UV-B and UV-C rays. This shielding effect is crucial for protecting living organisms on Earth from the harmful effects of excessive UV radiation, such as skin cancer, cataracts, and damage to the immune system.
Statement 3: Ozone is not found in the troposphere.
This statement is incorrect. While ozone is primarily found in the stratosphere, it can also be present in the troposphere, which is the lowest layer of the Earth's atmosphere where weather occurs. However, ozone concentrations in the troposphere are much lower compared to the stratosphere. In the troposphere, ozone is considered a pollutant and a greenhouse gas. It is formed through complex chemical reactions involving pollutants emitted from human activities, such as nitrogen oxides and volatile organic compounds. High levels of ozone in the troposphere can have harmful effects on human health and the environment.
In conclusion, only statement 2 is correct - In the stratosphere, ozone forms a shield protecting us from the UV radiation of the sun. Statements 1 and 3 are incorrect - ozone can be formed both naturally and through human activities, and it can be found in the troposphere, although in lower concentrations.
The correct answer is option 'A' - Only one. Let's analyze each statement one by one.
Statement 1: It can only be formed naturally in the atmosphere.
This statement is incorrect. While it is true that ozone can be formed naturally in the atmosphere, it can also be formed through human activities. Ozone is formed naturally in the atmosphere through the process of photolysis, where oxygen molecules (O2) are broken down by the sun's ultraviolet (UV) radiation. However, ozone can also be formed as a result of human activities, such as emissions from industrial processes and the burning of fossil fuels.
Statement 2: In the stratosphere, it forms a shield protecting us from the UV radiation of the sun.
This statement is correct. Ozone is mainly found in the stratosphere, which is the layer of the Earth's atmosphere located above the troposphere. In the stratosphere, ozone molecules absorb and scatter the majority of the sun's ultraviolet (UV) radiation, particularly UV-B and UV-C rays. This shielding effect is crucial for protecting living organisms on Earth from the harmful effects of excessive UV radiation, such as skin cancer, cataracts, and damage to the immune system.
Statement 3: Ozone is not found in the troposphere.
This statement is incorrect. While ozone is primarily found in the stratosphere, it can also be present in the troposphere, which is the lowest layer of the Earth's atmosphere where weather occurs. However, ozone concentrations in the troposphere are much lower compared to the stratosphere. In the troposphere, ozone is considered a pollutant and a greenhouse gas. It is formed through complex chemical reactions involving pollutants emitted from human activities, such as nitrogen oxides and volatile organic compounds. High levels of ozone in the troposphere can have harmful effects on human health and the environment.
In conclusion, only statement 2 is correct - In the stratosphere, ozone forms a shield protecting us from the UV radiation of the sun. Statements 1 and 3 are incorrect - ozone can be formed both naturally and through human activities, and it can be found in the troposphere, although in lower concentrations.
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Consider the following statements about Ozone:1. It can only be formed naturally in the atmosphere.2. In the stratosphere, it forms a shield protecting us from the UV radiation of the sun.3. Ozone is not found in the troposphere.How many of the above statements are correct?a)Only oneb)Only twoc)All threed)NoneCorrect answer is option 'A'. Can you explain this answer?
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