Which one among the following statements about ‘Drumlin’ is correct ?

Which one among the following statements about ‘Drumlin’ is correct ?

It is a streamlined hill moulded in glacial drift on the till plains.
It is a city located in central Europe.
It is a river.
It is a narrow road in Tibet.
This question was previously asked in
UPSC CAPF – 2023
The correct answer is A. A drumlin is a glacial landform, specifically a streamlined hill composed of glacial till, molded by ice flow.
– Drumlins are typically elongated features, with their long axis oriented parallel to the direction of glacial movement.
– They are formed beneath glacial ice sheets or glaciers.
– They are composed of unconsolidated glacial drift or till (sediment deposited directly by the glacier).
– Drumlins often occur in fields or swarms, giving a characteristic landscape appearance.
The shape of a drumlin is thought to be a result of the ice molding the underlying sediment as it flows over it. They typically have a blunt, steeper “stoss” end facing up-ice and a tapering, gentler “lee” end pointing down-ice. The term “drumlin” comes from the Irish word “droimnín”, meaning “little ridge”.
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