If the air contains high levels of pollutants what effect might this have water quality

Why does the skin of your finger shrink when you wash clothes for a long time?

Which of the following statements is most likely correct about a rock belonging to the jurassic age and a rock belonging to the cambrian age? options: 1) they have identical fossils of organisms that have evolved over time. 2) both have animal fossils preserved in them due to weathering and erosion. 3) they contain different fossils because life on earth has changed through time. 4) the fossils in them were formed on the surface of earth due to exposure to sunlight.

Genes that come together with different alleles are heterozygous. homozygous. genotype. segregated.