Question

Answer the following questions :

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Answer 1

1)100 thousand million stars

2)mass center

Answer 2

Hi, the answers are shown below :

Hi, the answers are shown below :

1) Stars are not scattered randomly through space, they are gathered together into vast groups known as galaxies. There are 100 thousand million stars.

2)So, neither Greenwich, Paris, Mecca or Jerusalem are the center of the earth.

The center of the Earth is inner core, which is solid and surrounded by the liquid outer core. The movement of the mantle, together with the Earth's rotation, generate the Earth's magnetic field. The Earth's surface layer surrounding the mantle is called its crust.

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