Give two reasons that the wolf population is not at Hardy-Weinberg equilibrium

HW equilibrium means no selective pressures. Selective pressures change the relative frequencies of the alleles in the gene pool.  It also means the population does not have either immigration or emigration to change the ratios of alleles in the gene pool  

The Hardy-Weinberg principle of genetic equilibrium tells us what to expect when a sexually reproducing population has no selection pressure, no gene flow, no nonrandom mating, not even genetic drift

Explanation:

The wolf population is not considered in a Hardy-Weinberg population as the population of wolves always remains in the state of migration, and there will be an occurrence of natural selection. For a population to be in a Hardy-Weinberg equilibrium there should be no migration and events of natural selection taking place

coal is not sustainable because it will one day run out.

"d.) carbon dioxide and hydrogen sulfide"