First, i'll explain what nebula is.
Nebulae "plural" are huge clouds of dust and gasses in outer space. Most of the gas is made up helium and also hydrogen. Nebulae are very big and can be be many light years away.
Planetary nebula is very different from the other kinds because planetary nebula contains old stars inside it. These nebulae are made from stars that are dying out. The dying stars start changing into red giants.
the answer is A) Truee
Explanation:
Each mineral has a unique crystal shape because of the arrangement of atoms.
Minerals crystals form in many different shapes and sizes. A mineral is made up of atoms and molecules. As atoms and molecules combine, they form a particular pattern. This pattern continues to grow as the mineral develops giving minerals different shapes.
C. Depopulation
D. Ethnic diversity
Idk if there is answer choices so idk exactly what youre looking for but as far as I know, Ireland was split because their was a war that occurred because people that lived in Ireland attacked the British rulers.
Ninety years ago Ireland was split in two after people living there went to war against their British rulers.The Partition of Ireland took place on May 3, 1921 under the Government of Ireland Act 1920. The entire island of Ireland provisionally became the Irish Free State on December 6, 1922.
b. four
c. six
d. eight