The main factor that shapes the life and eventual death of a star is how much mass it began with. A star that is 2.8 times the mass of our sun will most likely end up as a white dwarf.
When medium size stars are near the end most of the hydrogen core has been changed to helium. The helium core then begins to shrink and as this happens the core heats up. The energy that is released by the core heating up causes the the outer hydrogen shell to expand greatly. As the shell expands it cools and the colour changes to red.
The helium core will continue to heat up until the helium atoms start to fuse to form carbon atoms. When all the helium is fused to carbon it begins to die and gravity causes the last of of the star's matter to collapse inward forming a white dwarf.
Most of the money in Afghanistan is not suprisingly used to purchase weapons, amoury and military confinements. This obviously doesn't come cheap. So in thought that war would get them rich, making civilians happier with life in Afghan, everything went wrong and they had a downfall. There is not a single battle going on meaning weapons cannot be used. Meaning it was a waste of money. They then sold few amounts of guns, armoury and soldiers to the U.S and got not much money. This is why they are what they are today.
Answer:
The city of Pompeii was destroyed and buried by a powerful eruption of the Vesuvius volcano in 79AD, which threw a thick layer of volcanish ashes on the city and its inhabitants. Today, old Pompeii is a major touristic destination in Italy and an archeological site for the study of Roman culture and past life. Massive tourism poses a problem to conservation, but authorities try do promote near destinations as an alternative to the massive infllux of visitors to the site. For some time, excavations have been halted recently, too.
Explanation:
