Why does it take the outer planets so long to orbit the Sun? 2 reasons please

Explain the cause for movement river valley civilization to early industrial centers

How did the movement of soldiers during world war 1 contribute to the global influenza (flu) pandemic of 1918 to 1919, which killed millions of people

In wegener’s evidence for continental drift, continents were proposed to fit together, such as the east coast of south america with the west coast of europe. east coast of africa. west coast of greenland. lower west coast of africa.