List down two applications of isotopes

Which statement is a reason to support population regulation? a) it is unethical for us to control birth control rates b) humans have the freedom to produce as many children as desired c) the gap between the rich and poor has been narrowing since 1960 d) billions more people on the earth will intensify many environmental and social problems

Determine the reaction and balance the following equations urgent due in the morning

Chromosome 17 is made of over million base pairs.