Sample MCQs with Explanations
Q1. What is the primary cause of global warming?
A) Decrease in carbon dioxide levels
B) Greenhouse gas emissions
C) Deforestation reduction
D) Decrease in fossil fuel use
Answer: B) Greenhouse gas emissions
Explanation: The burning of fossil fuels increases greenhouse gases like CO₂, CH₄, and N₂O, leading to a rise in Earth’s temperature.
Q2. Which gas contributes most to the greenhouse effect?
A) Nitrogen
B) Oxygen
C) Carbon dioxide
D) Helium
Answer: C) Carbon dioxide
Explanation: Carbon dioxide is the main greenhouse gas responsible for trapping heat in the atmosphere, contributing significantly to global warming.
Q3. Which of the following is a major consequence of global warming?
A) Increased crop yields
B) Rise in sea levels
C) Reduced rainfall
D) Lower temperatures
Answer: B) Rise in sea levels
Explanation: Melting glaciers and polar ice caps due to global warming cause sea levels to rise, threatening coastal regions.
Q4. Which international agreement focuses on reducing greenhouse gas emissions?
A) Kyoto Protocol
B) WTO Agreement
C) SAARC Treaty
D) ASEAN Pact
Answer: A) Kyoto Protocol
Explanation: The Kyoto Protocol (1997) aims to reduce global greenhouse gas emissions and promote sustainable environmental practices.
Q5. What is one effective measure to control environmental degradation?
A) Deforestation
B) Industrial expansion
C) Afforestation and renewable energy use
D) Excessive mining
Answer: C) Afforestation and renewable energy use
Explanation: Increasing green cover and adopting renewable energy sources help reduce pollution and protect the environment sustainably.
Relevant Titles
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CBSE Class 12 Economics MCQs on Global Warming and Environmental Challenges
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NCERT-Based Class 12 Economics Quiz – Global Warming and Environment
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Class 12 Economics Online Practice Test: Environmental Challenges in India
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CBSE Board 2025 Practice Test – Global Warming MCQs
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Free Class 12 Economics MCQs – Environment and Sustainable Development
Introduction Paragraph
Introduction:
Prepare effectively for your CBSE Class 12 Economics Board Exam 2025 with this online MCQ practice test on “Global Warming and Environmental Challenges.” This topic from Part B: Indian Economic Development highlights one of the most critical issues affecting the world today—climate change and environmental degradation.
These NCERT-based Class 12 Economics MCQs are carefully designed as per the latest CBSE syllabus to help students understand the causes, consequences, and policy measures related to global warming, greenhouse gases, pollution control, and sustainable development.
Each question is accompanied by a detailed explanation to ensure clarity and conceptual strength. Practicing these exam-oriented MCQs will not only help you master important environmental economics topics but also improve your analytical and reasoning skills.
This CBSE Class 12 Economics online test is ideal for revision, self-assessment, and last-minute preparation to excel in the 2025 Board Examination.
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