The least abundant gas in out atmosphere is Carbon dioxide at 0.03%.
If Sagan scored 1200 divide 980 divide by 100 =3 Andrea =27 so I think that Andrea has the most then sagan 3×9=27
They stressed the direction of all human activity toward the goal of increasing the power of the ruler and the state.
Answer: when the death rate is equal to the birth rate the population growth is zero that means there is no increase and decrease of population in that particular year.
