Q. Which of the following types of mountains are formed by orogenic forces?

1. Block Mountains
2. Fold Mountains
3. Relict Mountains

Select the correct answer from the codes given below:
Answer: 1 and 2
Notes: Orogenic forces produce Block Mountains through faulting and Fold Mountains by compressional tectonic activity. Relict Mountains are mainly residual features shaped by erosion of ancient mountains, not direct products of orogenic forces. Thus, both Block and Fold Mountains are formed by orogenic processes, while Relict Mountains are not primarily formed by them.