It is unevenly distributed
The answer is B. Scientists study artifacts they discover to form ideas on what life was like in the past. Sometimes there will pieces that doesn't make sense and so they study some more until it makes sense.
Al-Qaedas main goal was to internationally terrorize countries, from the attacks of 9/11, to the Yemen Hotel Bombings.
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He is correct . Nice nice nice
Answer:
Both inventions were done by teenagers at their times.
Both inventions claimed to help the environment Boyan slat's machine would clean up trash flouting in ocean. Duro - Aind adebola, Akindele Abiola, faleka oluwatoyin and Bello Eniola proposed power generation from urine that would not create carbon monoxide.
unfortunately, both inventions were also challenged by more established scientists and engineers.