Consider the following statements regarding Global Warming: 1. It is caused by a decrease in the amount of Carbon Dioxide in the air. 2. It leads to an increase in global temperatures. 3. It is unrelated to emissions from industries and vehicles. Which of the statements given above is/are correct?

The correct option is (b). Explanation Global Warming refers to the long-term rise in the average temperature of the Earth's climate system, primarily observed since the pre-industrial period (between 1850 and 1900). - Statement 1 is Incorrect: Global warming is caused by an increase in the concentration of greenhouse gases, particularly Carbon Dioxide ($CO_2$), in the atmosphere. These gases trap heat radiating from Earth toward space (the Greenhouse Effect), rather than allowing it to escape. A decrease in $CO_2$ would theoretically lead to cooling, not warming. - Statement 2 is Correct: The accumulation of greenhouse gases enhances the atmosphere's capacity to retain heat, leading to a measurable increase in global average temperatures. This warming drives changes in weather patterns and climate systems. - Statement 3 is Incorrect: Global warming is directly linked to anthropogenic (human-caused) activities. Emissions from industries (burning fossil fuels for energy) and vehicles (internal combustion engines releasing $CO_2$) are among the primary contributors to the increased levels of greenhouse gases in the atmosphere. Key Takeaway: Global warming is the phenomenon of rising average global temperatures caused by the enhanced greenhouse effect resulting from the accumulation of emissions like Carbon Dioxide from human activities such as industrial production and transportation.

NCERT Class 6 Geography — Chapter 2: Major Domains of the Earth

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Consider the following statements regarding Global Warming:

It is caused by a decrease in the amount of Carbon Dioxide in the air.
It leads to an increase in global temperatures.
It is unrelated to emissions from industries and vehicles.

Which of the statements given above is/are correct?

Official previous-year question

Verified 1 Aug 2026.

Options

A1 only
B2 only
C1 and 3 only
D1, 2 and 3

Did you get this right?

Solution

The correct option is (b).

Explanation

Global Warming refers to the long-term rise in the average temperature of the Earth's climate system, primarily observed since the pre-industrial period (between 1850 and 1900).

Statement 1 is Incorrect: Global warming is caused by an increase in the concentration of greenhouse gases, particularly Carbon Dioxide ($CO_2$), in the atmosphere. These gases trap heat radiating from Earth toward space (the Greenhouse Effect), rather than allowing it to escape. A decrease in $CO_2$ would theoretically lead to cooling, not warming.
Statement 2 is Correct: The accumulation of greenhouse gases enhances the atmosphere's capacity to retain heat, leading to a measurable increase in global average temperatures. This warming drives changes in weather patterns and climate systems.
Statement 3 is Incorrect: Global warming is directly linked to anthropogenic (human-caused) activities. Emissions from industries (burning fossil fuels for energy) and vehicles (internal combustion engines releasing $CO_2$) are among the primary contributors to the increased levels of greenhouse gases in the atmosphere.

Key Takeaway: Global warming is the phenomenon of rising average global temperatures caused by the enhanced greenhouse effect resulting from the accumulation of emissions like Carbon Dioxide from human activities such as industrial production and transportation.

Your note

More from Chapter 2: Major Domains of the Earth

Consider the following statements regarding the continents of the world: 1. Asia is the largest continent and covers about one-third of the total land area of the earth. 2. The Equator passes through the center of the Asian continent. 3. Asia is separated from Europe by the Andes Mountains on the west. Which of the statements given above is/are correct?

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With reference to the Lithosphere, consider the following statements: 1. It comprises the rocks of the earth’s crust and the thin layers of soil. 2. The elevation of land is measured from the ocean floor. 3. The level of seawater remains the same everywhere. Which of the statements given above is/are correct?

medium

Which one of the following terms describes the narrow zone where land, water, and air are found together and which contains all forms of life?

easy

Consider the following pairs regarding the shapes of major oceans: Ocean | Shape/Characteristic 1. Pacific Ocean | Almost circular 2. Atlantic Ocean | 'S' shaped 3. Indian Ocean | Almost triangular 4. Arctic Ocean | Highly indented coastline How many of the pairs given above are correctly matched?

medium

Which of the following continents is the only one through which the Tropic of Cancer, the Equator, and the Tropic of Capricorn pass?

easy

Keep practising Chapter 2: Major Domains of the Earth

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The correct option is (b).

Explanation

Global Warming refers to the long-term rise in the average temperature of the Earth's climate system, primarily observed since the pre-industrial period (between 1850 and 1900).

Statement 1 is Incorrect: Global warming is caused by an increase in the concentration of greenhouse gases, particularly Carbon Dioxide ($CO_2$), in the atmosphere. These gases trap heat radiating from Earth toward space (the Greenhouse Effect), rather than allowing it to escape. A decrease in $CO_2$ would theoretically lead to cooling, not warming.
Statement 2 is Correct: The accumulation of greenhouse gases enhances the atmosphere's capacity to retain heat, leading to a measurable increase in global average temperatures. This warming drives changes in weather patterns and climate systems.
Statement 3 is Incorrect: Global warming is directly linked to anthropogenic (human-caused) activities. Emissions from industries (burning fossil fuels for energy) and vehicles (internal combustion engines releasing $CO_2$) are among the primary contributors to the increased levels of greenhouse gases in the atmosphere.