Question

Critics of Copernicus's heliocentric cosmos argued that, if Earth moves around the Sun, our Moon would get left behind. Which of Galileo's observations countered that argument? (A) Jupiter's moons stay with Jupiter as it moves through space (B) Venus and Mars stay with Earth as it moves through space (C) Mars has an elliptical orbit (D) the Moon's gravity is too strong for it to get left behind (E) the Sun's gravity is too weak to pull the Moon from Earth

Answer 1

Option (D) Moon's gravity is too strong for the moon to be left behind.

Step-by-step explanation:

The gradient of moon's gravitation is much more than the sun as the moon is closer to the earth than sun as the distance of the sun from the earth is far more than the distance of the moon from the earth.

Even though the sun is more massive than the moon and has greater and stronger over all gravity but still the moon's gravity is stronger on account of its closeness to earth and hence it can not be left behind.