In ancient Greece,Eratosthenes measured the difference in angles of the Sun's rays in two different locations in Egypt at the same time to calculate the
A) rate of rotation of the Earth.
B) distance from the Earth to the Moon.
C) distance from the Earth to the Sun.
D) circumference of the Earth.
Correct Answer:
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Q7: _ is the substance that makes up
Q8: Most asteroids inhabit the "asteroid belt" between
Q9: Which of the following is NOT necessarily
Q10: Which of the following is most true
Q11: The amount of matter in an object
Q13: Terrestrial planets are mainly composed of _,while
Q14: Eratosthenes was the first person to accurately
Q15: In the heliocentric model,
A) the Earth orbits
Q16: The branch of science that studies the
Q17: Aside from the Earth,the terrestrial planets are
A)
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