Which incident type requires regional or national resources

Which option best characterizes the pardon-seller?

It's timed! overpopulation can affect the natural environment • limiting land available for crops.• lowering the standard of living.• causing the destruction of forests.• worsening sanitation in cities.

How do i can change this sentence : a modern physician in a small town not only is proficient in general medicine but surgery as well. to parallel structure?