Answer:
c) The president may have to compromise with Congress to achieve legislative goals by accepting bills containing elements that he opposes.
Explanation:
Because the Congress would be the opposite party, the conflict would be that none of the highlighted bills would be passed, and if they shall pass, they will be favourable by people in the opposing party. There will be elements that he or she opposes.
Ecosystem includes all of the biotic and abiotic factors that are found in a given environment. Biome is a collection of different ecosystems which share similar climate conditions.
Underground water like in a well can't clean itself because of man made pollutants, from large farms that seep through the ground. there is little agitation to keep it areated, and becomes stagnant, which develops bacteria and other pathogens to make us sick..