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We will post 5 questions daily on static topics mentioned in the UPSC civil services preliminary examination syllabus. Each week will focus on a specific topic from the syllabus, such as History of India and Indian National Movement, Indian and World Geography, and more.
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Question 1 of 5
1. Question
Consider the following statements.
- A “carbon credit” is an electronic and serialized unit that represents one ton of CO equivalent that is reduced, avoided, or sequestered from projects applying an approved carbon credit methodology.
- Decarbonization refers to the conversion of the economic system or individual carbon emitting entity reducing the carbon intensity of its emissions over time.
Which of the above statements is/are incorrect?
Correct
Solution: a)
A “carbon credit” (also known as a “carbon offset”) is an electronic and serialized unit that represents one ton of CO2 equivalent that is reduced, avoided, or sequestered from projects applying an approved carbon credit methodology.
Decarbonization means the reduction of carbon. More specifically, the term refers to the conversion of the economic system or individual carbon emitting entity converting to reduce the carbon intensity of its (direct or value chain) emissions over time.
Incorrect
Solution: a)
A “carbon credit” (also known as a “carbon offset”) is an electronic and serialized unit that represents one ton of CO2 equivalent that is reduced, avoided, or sequestered from projects applying an approved carbon credit methodology.
Decarbonization means the reduction of carbon. More specifically, the term refers to the conversion of the economic system or individual carbon emitting entity converting to reduce the carbon intensity of its (direct or value chain) emissions over time.
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Question 2 of 5
2. Question
When coal is burned, it releases a number of airborne toxins and pollutants like
- Nitrogen oxides
- Lead
- Sulfur dioxide
- Mercury
- Heavy Metals
How many of the above options is/are correct?
Correct
Solution: d)
When coal is burned it releases a number of airborne toxins and pollutants. They include Carbon dioxide, mercury, lead, sulfur dioxide, nitrogen oxides, particulates, and various other heavy metals. Health impacts can range from asthma and breathing difficulties, to brain damage, heart problems, cancer, neurological disorders, and premature death.
Incorrect
Solution: d)
When coal is burned it releases a number of airborne toxins and pollutants. They include Carbon dioxide, mercury, lead, sulfur dioxide, nitrogen oxides, particulates, and various other heavy metals. Health impacts can range from asthma and breathing difficulties, to brain damage, heart problems, cancer, neurological disorders, and premature death.
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Question 3 of 5
3. Question
While burning hydrocarbon fuels, if we see a blue flame it means that the fuel is
Correct
Solution: b)
In saturated hydrocarbons complete combustion of the fuel takes place but in the unsaturated hydrocarbons incomplete combustion takes place.
Hence saturated hydrocarbons give a blue flame while unsaturated hydrocarbons burn with a sooty flame.
Incorrect
Solution: b)
In saturated hydrocarbons complete combustion of the fuel takes place but in the unsaturated hydrocarbons incomplete combustion takes place.
Hence saturated hydrocarbons give a blue flame while unsaturated hydrocarbons burn with a sooty flame.
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Question 4 of 5
4. Question
Consider the following statements regarding Biogas.
- It is formed by the decomposition of cow dung in the absence of oxygen.
- It is a non-renewable source of energy.
- It burns without smoke and leaves no residue.
How many of the above statements is/are correct?
Correct
Solution: b)
Statement 2 is incorrect.
Biogas is a renewable fuel produced by the breakdown of organic matter such as food scraps and animal waste by microorganisms in the absence of oxygen. It burns without smoke, leaves no residue like ash in wood, charcoal and coal burning. Its heating capacity is high.
Incorrect
Solution: b)
Statement 2 is incorrect.
Biogas is a renewable fuel produced by the breakdown of organic matter such as food scraps and animal waste by microorganisms in the absence of oxygen. It burns without smoke, leaves no residue like ash in wood, charcoal and coal burning. Its heating capacity is high.
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Question 5 of 5
5. Question
Which one of the following is an exhaustible but renewable natural resource?
Correct
Solution: d)
Water in usable condition is an exhaustible but renewable natural resource.
Incorrect
Solution: d)
Water in usable condition is an exhaustible but renewable natural resource.
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