Can Someone Please Help Me With These Earthscience/Geology/Astronomy Questions?

[Tiana]

GUYS PLEASE HELP ME WITH OR GIVE ME SOME DIRECT LINKS TO WHERE I CAN FIND THE ANSWERS PLEASE JUST HELP ME WITH THE ANSWERS THOUGH PLEASE IM BEGGING YOU GUYS IF U HAVE ANY QUESTIONS OR CONCERNS JUST SEARCH ME ON FACEBOOK Tiana Jones PLEASE AND THANX ALOT

All of the following are contents of a galaxy EXCEPT
A. Stars
B. Clouds of gas
C. Clouds of red shift
D. Clouds of dust

Which type of galaxy contains very little dust and gas?
A. Spiral
B. Elliptical
C. Barred spiral
D. Irregular

Which type of galaxy has a bunch of bright stars in the center and arms of stars that spiral around it?
A. Spiral
B. Elliptical
C. Barred spiral
D. Irregular

Which type of galaxy has a straight bar of stars that goes through the center?
A. Spiral
B. Elliptical
C. Barred spiral
D. Irregular

How many light-years across is the diameter of the Milky Way Galaxy?
A. 10,000 light-years
B. 1,000,000 light-years
C. 100,000 light-years
D. 100 light-years