Complex sentence: For example, polyandry in the Himalayan mountains is related to the scarcity of land; the marriage of all brothers in a family to the same wife allows family land to remain intact and undivided.
Split into simpler sentences: For example, polyandry in the Himalayan mountains is related to the scarcity of land. The marriage of all brothers in a family to the same wife allows family land to remain intact and undivided.