How topographic map and satellite mosg likely change over time?

How do you date a sample of rock that you suspect as being one of the earliest on earth

Agene pool: a) is the collection of all the alleles found in a single species b) is the collection of all the alleles found in a single population c) is the collection of all the chromosomes found in a single population d) is the collection of genes in a species that allow the individuals to swim

How is the carbon cycle related to global warming ?