Explain how emigration impacts a country's sex ratio

Males immigrate to new countries/emigrate from their own countries more often than women because they come to seek work, often being physical. In the past women would stay while their husbands established a source of income and residence so their family could immigrate as well. Emigration impacts a country’s sex ration by creating a higher percentage of women compared to men, as men are emigrating at higher rates.

There can be more freedom for them