What part of an ecosystem if not needed for its survival ?

Where would you be most likely to find a freshet?

The map above shows where people live in the united states. areas that are darker blue are areas where people live close together. areas that are lighter colors are places where people live farther apart. as a geographer, if you were to study where people live and why they choose to live in these places, which of the six essential elements of geography would you be using?

What term describes the government positions that officials who passed the civil service exam became a part of?