The Pennines (Europe), Appalachians(America) and the Aravallis (India) are examples of?AOld mountainsBYoung mountainsCFold mountainsDBlock mountainsAnswer: A. Old mountainsRead Explanation:Old mountains, also known as ancient or relict mountains, are mountain ranges formed through geological processes that occurred millions of years agoThese ranges have undergone significant erosion, weathering and tectonic stabilityExamplesThe Pennines(Europe)AppalaAppalachians(America)The Aravallis(India)