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The correct answer is - A. Idaho.
The Columbia River is a big river and it flows through the western part of the North American continent. Its path leads it to cross through four federal states, tow of which are Canadian, and two are in the United States. The river starts its flow in Canada, in Alberta, moving in a northwestern direction. After that, it makes a sharp turn and moves in south direction while passing through British Columbia. It crosses the border between Canada and the United States, entering Washington, and after that Oregon, making multiple turns in different direction, and it ends up into the Pacific Ocean.
For example, use the food web of a savannah biome.
Let's say the hippos all disappeared. Because the hippos are prey for the tertiary predators like a hyena, the population of the predators would decrease while the population of the grass increased.
If the predators disappeared the preys' population would spiral out of control and all the primary producers like leaves and grass would become scarce. Additionally, the decomposing carcass of animals like dead predators and prey create food for microorganisms which make fertile soil; thus, causing the land to become barren.
i took this test already
The correct answer is:
B. They earn as much money as people in other regions.
