Question

Assertion [A]: The Andes Mountains are an example of young fold mountains.

Reason [R]: Over ten million years ago, the tectonic plates near South America collided with each other to form a range of fold mountains.

• A. [A] is true but [R] is false.
• B. [A] and [R] are false.
• C. [A] and [R] are true and [R] is the correct justification for [A].
• D. [A] and [R] are true but [R] is not the correct justification for [A].

Answer 1

The correct option is C [A] and [R] are true and [R] is the correct justification for [A].

There are said to be two types of fold mountains: the young fold mountains that are roughly about 10 million to 40 million years of age and the old fold mountains that are over 200 million years of age. Examples of young fold mountains include the Rockies, the Andes, and the Himalayas. The Urals and the Appalachian mountains are good examples of old fold mountains.