- (A) Petrol
- (B) Natural Gas
- (C) Coal
- (D) Diesel
_______ is considered the largest glacier of Pakistan.
March 18, 2026
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- (A) Siachen Glacier
- (B) Tirich Mir Glacier
- (C) Biafo Glacier
- (D) Hispar Glacier
Which energy source is considered the least pollutant?
Which energy source is considered the least pollutant?
The correct answer is: (B) Natural Gas.
- Of all these choices, it’s believed that natural gas is the cleanest-burning fossil fuel. As a major component of this fuel, methane has a much simpler molecular structure and a lower percent carbon by weight compared to coal and liquid petroleum.
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