hydrogen
None at all, the stars are all in the sky they are mostly visible at night.
Hydrogen makes up about 75% of the universe by mass. It is the most abundant element in the universe and can be found in stars, gas clouds, and planets.
mostly 4.5 outta5
I heard from many people that it' comes from stars and it's found no where on earth
Hay is going to be mostly carbon and hydrogen with trace amounts of many other elements.
Hydrogen and a bit of Helium. After they become red giants they can start making Carbon from Helium, but not until then. After several more changes they have fused almost everything to a mixture of Nickel/Iron and can go no further, they are dead.
50. 50 stars in the flag for fifty states.
Its protons. The atom changes depending on how many protons it has. See also atomic number.
Mostly, 4 , but it sometimes also makes 3
64 divide by 6 make 10 plus something. if making 11, then she makes 66 Stars and have 2 to spare :-) Regards.
Carbon
Nobody knows. There is no estimation of how many stars there are and how many stars have planets. In our Solar System, since Pluto got downgraded to a 'dwarf planet' there are eight. Pluto was always weird -- an eccentric orbit at a weird tilt, way off from the others. So it mostly makes sense to say eight. A lot of people got upset, but we haven't heard a word from Pluto. In recent years, many planets were discovered orbiting other stars, they are known as exoplanets. There are about 350 known exoplanets, and the number is growing all the time.