Climate Change Science MCQs

Consider the following statements: Statement I: Circular economy reduces the emissions of greenhouse gases. Statement II: Circular economy reduces the use of raw materials as inputs. Statement III: Circular economy reduces wastage in the production process. Which one of the following is correct in respect of the above statements?

• ABoth Statement II and Statement III are correct and both of them explain Statement ICorrect
• BBoth Statement II and Statement III are correct but only one of them explains Statement I
• COnly one of the Statements II and III is correct and that explains Statement I
• DNeither Statement II nor Statement III is correct

Consider the following statements: 1. CO₂ emissions in India are less than 0.5 t CO₂/capita. 2. In terms of CO₂ emissions from fuel combustion, India ranks second in the Asia-Pacific region. 3. Electricity and heat producers are the largest sources of CO₂ emissions in India. Which of the statements given above is/are correct?

• A1 and 3 only
• B2 only
• C2 and 3 onlyCorrect
• D1, 2 and 3

With reference to Direct Air Capture, an emerging technology, which of the following statements is/are correct? 1. It can be used as a way of carbon sequestration. 2. It can be a valuable approach for plastic production and in food processing. 3. In aviation, it can be a source of carbon for combining with hydrogen to create synthetic low-carbon fuel. Select the correct answer using the code given below.

• A1 and 2 only
• B3 only
• C1, 2 and 3Correct
• DNone of the above statements is correct

The World Bank warned that India could become one of the first places where certain impacts of climate change become unmanageable. According to said report: 1. Peninsular India will most likely suffer from flooding, tropical cyclones and droughts. 2. The survival of animals including humans will be affected as shedding of their body heat through perspiration becomes difficult. Select the correct answer using the code given below.

• A1 only
• B2 onlyCorrect
• CBoth 1 and 2
• DNeither 1 nor 2

Consider the following statements: Statement I: Studies indicate that carbon dioxide emissions from cement industry account for more than 5% of global carbon emissions. Statement II: Silica-bearing clay is mixed with limestone while manufacturing cement. Statement III: Limestone is converted into lime during clinker production for cement manufacturing. Which one of the following is correct in respect of the above statements?

• ABoth Statement II and Statement III are correct and both of them explain Statement I
• BBoth Statement II and Statement III are correct but only one of them explains Statement ICorrect
• COnly one of the Statements II and III is correct and that explains Statement I
• DNeither Statement II nor Statement III is correct

One of the following regions has the world's largest tropical peatland, which holds about three years' worth of global carbon emissions from fossil fuels; and the possible destruction of which can exert detrimental effect on the global climate. Which one of the following denotes that region?

• AAmazon Basin
• BCongo BasinCorrect
• CKikori Basin
• DRio de la Plata Basin

Consider the following activities: 1. Spreading finely ground basalt rock on farmlands extensively 2. Increasing the alkalinity of oceans by adding lime 3. Capturing carbon dioxide released by various industries and pumping it into abandoned subterranean mines in the form of carbonated waters How many of the above activities are often considered and discussed for carbon capture and sequestration?

• AOnly one
• BOnly two
• CAll threeCorrect
• DNone

Consider the following: 1. Aerosols 2. Foam agents 3. Fire retardants 4. Lubricants In the making of how many of the above are hydrofluorocarbons used?

• AOnly one
• BOnly two
• COnly threeCorrect
• DAll four

Among the following crops, which one is the most important anthropogenic source of both methane and nitrous oxide?

• ACotton
• BRiceCorrect
• CSugarcane
• DWheat

What is blue carbon?

• ACarbon captured by oceans and coastal ecosystemsCorrect
• BCarbon sequestered in forest biomass and agricultural soils
• CCarbon contained in petroleum and natural gas
• DCarbon present in atmosphere

In rural road construction, the use of which of the following is preferred for reducing the carbon footprint? 1. Copper slag 2. Cold mix asphalt technology 3. Geotextiles 4. Hot mix asphalt technology 5. Portland cement Select the correct answer using the code given below:

• A1, 2 and 3 onlyCorrect
• B2, 3 and 4 only
• C4 and 5 only
• D1 and 5 only

Which of the following statements best describes the term 'Social Cost of Carbon'? It is a measure, in monetary value, of the:

• ALong-term damage done by a tonne of CO₂ emissions in a given yearCorrect
• BRequirement of fossil fuels for a country to provide goods and services to its citizens, based on the burning of those fuels
• CEfforts put in by a climate refugee to adapt to live in a new place
• DContribution of an individual person to the carbon footprint on the planet Earth