Be fair, Goodgoalie. The questioner has tried to answer the questions on their own and is only asking us to check those answers. That seems like an excellent approach to studying to me.
Of those answers, I agree with 1, 2, 4, 5, 7, 8 & 10.
For Q3, answer C is clearly incorrect because Ceres has a diameter of around 950km and Pluto's diameter is over 2000km. However everything in the list orbits the Sun, so the required answer is A.
For Q6, it's not the volume of a celestial body which is important. For example, a gaseous body could occupy a great deal of space without there being very much of it. It's that 'how much of it' factor, which is important, i.e. the mass (Answer B)
This might help with Q9 (because you've only copied the question in your post, rather than providing an answer):
https://www.quora.com/Why-are-some-constellations-visible-only-during-certain-seasons