Question

unfavourable sex ratio meaning

Answer 1

unfavourable sex ratio means that there is a huge gap between numbers of
female per 1000 male
or
number males per 1000 female.

Answer 2

Gender ratio:
It is defined as the number of females per 1000 males in the population. This information is an import ant Social indicator to measure the extent of equality between males and females in a society at a given time.
Reasons for Unfavourable Gender-ratio for Females 
(i) Preferential treatment is given to a male child and female children get neglected in most Indian homes.
(ii) The Infant mortality rate in India is high and female infant mortality rate is still higher.
so (iii) People go through
sex determination test. In case of a girl child they abort the child.
(iv) Women generally have lower social, political and economic status in the Indian society. We find dowry deaths, opposition to widow remarriages and low nutritional levels in woman.
(v) lack of social awareness programmes among people especially in rural areas.