Acountry with zero population growth is likely to be
in africa
in asia
economically developed
economically underdeveloped

A country with zero population growth is likely to be economically developed.

Explanation:

A country that does not experience population growth is considered to have a population in equilibrium. This situation occurs due to several factors that converge to generate it:

-A high life expectancy, which generates a decrease in the mortality rate.

-Low emigration rates provided by the economic and social stability of the country.

-Low birth rate, generally corresponding to the level of occupation of the population, as well as the availability of contraceptive methods.

-High rate of reception of immigrants, through which the population grows to minimum levels, due to the factors indicated above.

All these characteristics, analyzed individually and in groups, correspond to countries with developed and stable economies.

sex cells are usually half's then they find another half and make a fertilize egg

well, i believe that the answer is 2. : 3