Which of the following best describes the relationship between atmospheric
CO2 levels and global temperature
1. CO2 and global temperature have
fluctuated over the past 800,000 years,
with periods of high CO2 correlating with
higher global temperature
2. Both CO2 and global temperature have
stayed relatively stable over the past
800,000 years
3. There has been fluctuation in both CO2 and
global temperature over the past 800.000. 4. CO2 and global temperature has fluctuated over the past 800,000 years, with periods of high CO2 correlating with lower global temperature

Answer : romans built laws to manage the pollution which was lead by smoke produced by the factories.

they had the law tat factories that produces smoke cannot be built near residential buildings.

building of proper sewage system was done to ensure that the waste is carried away from the humans so that they do not get diseases from it.

also they built water systems to provide water in those areas which are drought prone.

The answer would be c, white eyes are homozygous recessive. in the early 1900s, morgan conducted several experiments with vinegar  flies (drosophila). one  sample revealed an anomaly: a  white-eyed, single male fly. he attempted to breed this fly with the typical red-eyed females. the offspring were all red-eyed. using flies from this new generation (brother-sister pairs)  produced some red-eyed and a few white-eyed flies. the white-eyed were all male. in later experiments, he was able to produce white-eyed females. this proved that white eyes are not lethal to either sex (ruling out a and b). since the percentage of white eyes to red eyes is so low, white eyes are not a dominant trait. it would be a recessive trait.