To produce electricity or to heat our houses, we use —.

Question

Accepted Answer

ক. coal, mineral oil and natural gas

ব্যাখ্যা: The passage says, 'other sources of energy such as mineral oil and natural gas were also burned to heat our houses, run cars and airplanes or to produce electricity', along with coal. So to produce electricity or heat our houses we use coal, mineral oil and natural gas. Sunlight and renewable energy are not mentioned.

**মনে রাখার কৌশল:** Coal + oil + gas = fossil fuels।

**একই ধরনের প্রশ্ন:**
১. What are the sources of energy mentioned in the passage?
*উত্তর:* Coal, mineral oil and natural gas

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