Because all those energy sources are natural and will always be there, when ever there is a need for extra energy.
C is the answer. Due to the current state of the world economy; people, if left to their own devices, would fish as much as possible so they can sell their fish to make money. Current technology means we can catch as many fish as we want (trawlers etc.). The problem with this is that there is only a finite amount of fish in the sea. If we were to fish them without limits in place, we could cause them to go extinct.
Im not sure but B or c. Im sorry
A clade is a group of species that includes an ancestral species and all of its descendents
Hydrophilic and hydrophobic
