In which situation would you expect the lowest level of competition for resources among populations in an ecosystem?

a
A forest experiences a rainfall
b
A grassland experiences a flood
c
A mountain experiences a drought
d
A polar ecosystem experiences warm temperatures

What effect would average population growth have on land usage? a. urban use of land would rise to more than 30 percent of available land. b. industrial use of land would rise to more than 30 percent of available land. c. the percentage of available land used as cropland would stay the same. d. cropland would fall to about 10 percent of available land.