Mention two causes for the imbalance in sex ratio.

Two causes for the imbalance in sex ratio are:

1. Migration — As mostly the young male population migrate in search of jobs, this creates an imbalance in sex ratio with high sex ratio in the place of origin and low sex ration in the place of destination.
2. Female Infanticide — Due to poverty, illiteracy, dowry system and desire for male child, Female Infanticide is practiced in some regions which creates an imbalance in sex ratio.