Explanation:
The factor-label method is a technique for converting units of measurement into other units of measurement. ... The conversion units are arranged in fraction form in such a way as to cancel all other units except the desired unit. The factor-label method can be used to convert simple units as well as derived units.
This is true, it can be served as a push factor!
Sex ratio is the difference between males and females in a population. In China, sex ratio is an issue because of how favored males are. There is cases of femicide and girls are usually put up for adoption leading to an unbalanced sex ratio.