Answer:
The correct answer is: b. intermediate- to low-mass stars (between 0.8x to 8x the mass of our Sun).
Explanation:
Once the hydrogen in the nucleus is finished, the hydrostatic equilibrium is broken, and gravity is able to overcome radiation. This causes the star's core to contract, thus increasing its internal temperature and density. Meanwhile, due to convection, the outer layers expand, so the external temperature decreases. The star increases its external size becoming what we know as the Red Giant.
By increasing the temperature in the core, the necessary conditions are given to begin to fuse Helium and convert it into Carbon. So the core is getting denser and the outer layers of the star expand even more.
The end of our star is marked by the moment when the helium in the nucleus ends. In addition, the outer layers are so far apart that they no longer exert sufficient pressure to compress the core and trigger carbon fusion. In parallel, the star is so large that the outer layers of the star escape the gravity of the star, pushed by radiation. In this way, the interstellar medium of helium, carbon and a little oxygen is enriched. Leaving behind a White Dwarf, the nucleus of the star in which Helium has become Carbon.
Answer:
A. Imperialism
Explanation:
European Imperialism in Africa was termed as the "<em>Scramble for Africa."</em> This was a time when majority of the countries in Africa were colonized by the Europeans. Much of their land was controlled because of having rich natural resources. The colonizers also imposed<u><em> economic policies that were unfair to the Africans.</em></u> Families were separated because of "forced labor." Men were obligated to work on the<em> mining areas and farms.</em> This left the women and children devastated. Since Europeans did not respect the traditions of the Africans, it led to the breaking up of values in the society.
The length of time that a volcanic eruption impacts the climate is determined by the capacity of the volcano and how much material it will let out in the atmosphere. The smaller the volcano, with smaller capacity, the smaller effect it'll have on the climate and the duration of it's impact, and the space on which it'll have climatic impact. The bigger the volcano, with bigger capacity, the bigger the effect on the climate and the duration of it, and the bigger the space it will have climatic impact on.
When there is something that they want but don't have. they imagine what it would be with that, whether its a new phone or a nice vacation.
Hope this helps :D
