Scientists and astronomers have found that in galaxies with central black holes, there are also large star formations near those black holes. What has this led researches to conclude?
that star formations create black holes
that black holes and star formations are unrelated
that black holes and star formation are related
that black holes create star formations

the bal will not change its velocity.

answer;

d. are made mostly of liquid

explanation;

-the general   composition and structure planets includes; they have a thick gas and liquid layer covering a small,solid core. mostly the gases are hydrogen and helium atmosphere and layers of liquid hydrogen. for instance neptune and uranus are examples of the outer planets, they have a core covered by ice and ammonia.

-neptune's atmosphere is hydrogen and helium with a bit of methane so there is no oxygen to breath and the interior is made up of frozen water and ammonia with a rock and iron core. thus, there is no liquid water or solid surface to survive.

c because the news are a source of information of things that happen on the daily and shows evidence about that particular topic