Answer : 1. "मेन्डर"
Explanation :

The correct answer is Horst The land between two parallel faults rising to form is termed a Block Mountain or Horst. The land between two parallel faults subsiding into a depression is termed as a Graben or Rift Valley. The Rhine Valley, the Vosges mountain in Europe and Vindhyas and Satpura are examples of Block mountain systems. East African Rift, Baikal Rift Valley (Russia), and Rhine Rift Valley (Germany) are examples of Rift Valley.