In our current solar system model, a. the earth is the center of the solar system but the sun is the center of the universe b. the sun is not the center of the universe but is the center of the solar system c. the earth is the center of the universe d. neither the solar system nor the universe have a center

costa rica canal

explanation:

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.