Consider the following information :

Region	Name of the mountain range	Type of mountain
1. Central Asia	Vosges	Fold mountain
2. Europe	Alps	Block mountain
3. North America	Appalachians	Fold mountain
4. South America	Andes	Fold mountain

In how many of the above rows is the given information correctly matched?

The correct option is Only two.

Let us analyze each row step-by-step to determine which matches are correct:
1. Row 1 (Central Asia - Vosges - Fold mountain): This match is incorrect. The Vosges mountain range is located in Europe (specifically in France), not in Central Asia. Furthermore, the Vosges is a block mountain (fault-block mountain), not a fold mountain.
2. Row 2 (Europe - Alps - Block mountain): This match is incorrect. While the Alps are located in Europe, they are young fold mountains formed by the collision of tectonic plates, not block mountains.
3. Row 3 (North America - Appalachians - Fold mountain): This match is correct. The Appalachian Mountains are located in North America and are old fold mountains.
4. Row 4 (South America - Andes - Fold mountain): This match is correct. The Andes range is located in South America and is a classic example of a young fold mountain range.

Therefore, only two rows (Row 3 and Row 4) contain correctly matched information.