The significance of the yearly flooding of the Nile Valley is important because it replenishes nutrients in the soil and makes the land more fertile for plants to grow.
<span>Difficult to determine the absolute age of the fossil, because radiometric dating of sedimentary rock is much, much more difficult than that of igneous rock. </span>
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Image result for What type of convergent plate boundary does Lake Tanganyika have?
Lake Tanganyika–like all of the other African Rift lakes except for Lake Victoria–lies in a graben (a down-dropped block of land bounded by extensional, or normal, faults) along the axis of the great rift. I think this is correct im not to sure but i hope it helps
Explanation:
Answer: We study other star systems in spaceships and big, professional telescopes
The answer to this would be A, because they began to spread westward once they decided to head away from the Arctic.
