No. It has it all: from steep mountains to hilly terrain to flat lands.
No, Philadelphia is mostly flat land. There aren't many near it either.
The State of Kuwait has no actual mountain ranges. The terrain in this area has some rolling hills, but the land is mostly flat.
an area of land of mostly flat treeless land
yes it is flat
The land is flat with a lot of mountains
It has some flat land, but also many mountains and valleys.
There are mountains
A plain.
It is mostly hilly terrain.
Greece had a rough land with lots of mountains. Egypt was flat with mostly deserts.
north Germany is flat and south is mountains