What is it?
continent
What is it?
river
What is it?
volcano
What is it?
plain
What is it?
waterfall
What is it?
lake
What is it?
island
What is it?
desert
What is it?
bay
What is it?
tundra
What is it?
Mountain
What is it?
glacier
What is it?
ocean/sea
What is it?
forest
What is it?
tropics