How do erosion and deposition work together to form sand dunes

Explanation:

Erosion erodes rocks and such to form sand. Deposition moves the sand to another place ro form the dunes.

within these regions are all the major types of biomes in the world. a biome is a community of animals and plants spreading over an extensive area with a relatively uniform climate. some diverse biomes represented in north america include desert, grassland, tundra, and coral reefs.