Question

Assertion [A]: The Appalachian Mountains are known as the old fold mountains.

Reason [R]: These were formed about 2000 million years ago.

Mark the correct answer.

• A. Both A and R are true and R is the correct explanation of A.
• B. Both A and R are true but R is not the correct explanation of A.
• C. A is true and R is false.
• D. A is false and R is true.

Answer 1

The correct option is C A is true and R is false.

The Appalachian Mountains form the eastern boundary of North America. They are a set of old fold mountains. They are called so because they were formed about 500 million years ago.