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Natural Environment- Vegetation

TUNDRA: arctic plain with grass and brush (matorrales).
TAIGA: forest in northern regions.
STEPPE: grassy plain without trees.
MIXED FOREST: forest with two or more dominant tree species. (Appalachian plateau)
FOREST: wooded place (with plants and trees).
BUSH: plant. (Arbusto, mata).
SCRUBLAND: land with stunted plants.
MOORLAND: area of moor.
MEADOW: field for grazing.
GRASSLAND: grassy land for pasture.
JUNGLE: area of land overgrown with dense forest and vegetation, typically in the tropics.
SAVANNAH: grassy plain

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Tectonic plates

Some 300 million years ago, the major part of the emerged lands were grouped to form a supercontinent, Pangea. In the following image, we see the form it took:

200 million years ago, this supercontinent began to fracture and break up, in the first instance, into two other continents: Gondwana and Laurasia. This theory is called Continental Drift.