1- The terrestrial lithosphere is composed almost of 80% by igneous rocks, they are also known as magmatic rocks and are formed at high temperatures due to magma solidification, they come from the superior mantle and terrestrial coast. Its texture is super resistant with significant hardness to obtain minerals and other derived materials. They can be divided into extrusive and intrusive.
2- Through experiments, Bowen has defined a sequence of mineral formation when a magma begins to cool. There are two types of magmatic differentiation defined by Bowen, the continuous series and the discontinuous series. In the continuous series the internal structure of the magma is not altered and all minerals have iron and magnesium, they are formed: aluminum, silica and sodium and calcium.
In the discontinuous series decreasing the temperature reacts the previously formed mineral with the existing liquid, and thus a new mineral with different internal structure and composition is formed. They are formed: olivine, pyroxena, amphibole and biotite.
What are the options if there are options?
Answer:
Tectonic plates move.
Explanation:
Earthquakes are natural disasters that occur because of movement in tectonic plates.
Great Famine, also called Irish Potato Famine, Great Irish Famine, or Famine of 1845–49, famine that occurred in Ireland in 1845–49 when the potato crop failed in successive years. The crop failures were caused by late blight, a disease that destroys both the leaves and the edible roots, or tubers, of the potato plant. As a direct consequence of the famine, Ireland's population fell from almost 8.4 million in 1844 to 6.6 million by 1851. About 1 million people died and perhaps 2 million more eventually emigrated from the country. Many who survived suffered from malnutrition. Additionally, because the financial burden for weathering the crisis was placed largely on Irish landowners, hundreds of thousands of tenant farmers and laborers unable to pay their rents were evicted by landlords unable to support them. Continuing emigration and low birth rates meant that by the 1920s Ireland's population was barely half of what it had been before the famine.
