The answer is B) Inca. Extensive road network across plains, deserts and mountains reaching all corners of the empire was one of the notable features of the Inca empire like terraced farming, canals, crop rotation and irrigation as agricultural innovations. It allowed smooth military operations, trading, and the use of runners or chasquis.
Erta Ale,<span>Ol Doinyo Lengai
hopefully it helpful/right (:
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Answer: A
Explination: The moon is tidally locked to the Earth because it rotates in exactly the same time as it takes to orbit the Earth. That is also why we only see one side of the moon.
Because of the sound waves that can travel through walls. Our ears are very intelligent and can process many sounds. Light rays are different though, because objects can block them because the light rays are not as strong as the sound waves.
