Suppose the distance to the moon were twice its actual value. would it still be possible to have a total solar eclipse? why or why not?

Which of the following factors is not used to measure a country’s standard of living? a.) life expectancy b.)educational levels c.)divorce rates d.) gross income

Where is the world’s shortest commercial runway?

What is one early technological advance that shaped culture? a the use of fire b the discovery of arable land c family units. d migration