The forces operating on the surface of the earth which cause formation of landforms are called:

1. Exogenic forces
2. Orogenic forces
3. Diastrophic forces
4. Epeirogenic forces

Identify A and B.

1. A: Anticline B: Archline
2. A: Syncline B: Anticline
3. A: Anticline B: Syncline
4. A: Syncline B: Archline

Volcanic activities are common in which of the following?

1. Young fold mountains
2. Old fold mountains
3. Residual mountains
4. Volcanic plateaus

Assertion (A): External forces or Exogenic forces are Destructive Forces.

Reason (R): They produce relief such as mountains, plateaus, plains, lakes and big faults.

1. Both A and R are true and R is the correct explanation of A.
2. Both A and R are true but R does not explain A.
3. A is true but R is false.
4. A is false but R is true.