Which of these fuels is the least polluting?
Nature’s Treasures Class 6 Science – Key Objective Questions for Learning
Objective questions from Chapter 11 help students reinforce their understanding of natural resources. These MCQs ensure concept clarity on topics such as forests, wildlife protection and water conservation. Each answer provides insights into real-world applications, making science more relatable and interesting for students.
Ans.: (D)
Natural gas is the least polluting fuel.
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The correct answer is (D) Natural gas.
Natural gas is the least polluting fuel among the options because it burns more cleanly than coal, petrol, or diesel. It produces lower amounts of carbon dioxide (CO₂), sulfur dioxide (SO₂) and particulate matter, making it a more environmentally friendly energy source.
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