I am so confused with this question

How does human environment effect the biosphere

Identify the composition of oceanic and continental crystal rocks.in a model of earth’s interior,where would these rocks appear?

Urgent in guinea pigs, black fur (b) is dominant over white fur (b). cross a heterozygous (hybrid) black guinea pig with a homozygous (purebred) white guinea pig. complete a punnett square, identify the genotype(s), phenotype(s), and probability (% and fraction) that the offspring will be black and white?