Which is evidence that scientists use to support the big bang theory?

A.
Earth is the only planet with permanent liquid water on its surface.

B.
The outer planets are mostly composed of hydrogen and helium.

C.
Most galaxies are moving away from each other.

D.
Most orbits have an elliptical shape.
2.

(10 pt) Where is most of the mass of the solar system today?

A.
in Earth and the other planets

B.
in the sun

C.
in the asteroid belt

D.
in the various moons
3.

(10 pt) How do the orbits of the outer planets compare to the inner ones?

A.
elliptical with larger orbital radii

B.
circular with larger orbital radii

C.
elliptical, but in a different plane

D.
circular, but in a different plane
4.

(10 pt) Which is the correct position from the center of the solar system of the sun, earth, and moon during a solar eclipse?

A.
sun, moon, earth

B.
sun, earth, moon

C.
earth, sun, moon

D.
moon, sun, earth
5.

(10 pt) During which lunar phase is the moon’s far side entirely lit?

A.
full moon

B.
first quarter

C.
last quarter

D.
new moon
6.

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Most galaxies are moving away from each other as they are expanding every year by year and mot mass of solar system so characterized by the sun and the outer planet being far away for the center of the sun thus have a circular orbit and a larger orbital radius form the sun as hence these planets are gases giants.

For the occurrence of a solar eclipse, the moon needs to come in between the earth and the sun and hence the moon covers the sun forming a ring-like appearance and hence blocking the rays from reaching the part of the earth.

The new moon is when the light of the sun lights up the disk and has a thin faintly appearance see in the first quarter.