The Paleolithic (from the Greek παλαιός, palaiós: 'ancient', and λίθος, lithos: 'stone') means etymologically ancient stone, a term created by archaeologist John Lubbock in 1865 as opposed to Neolithic (new stone). It is the longest period of human existence (in fact it covers 99% of it and extends from about 2.59 million years ago (in Africa) 1 until about 12,000 years ago. the Mesolithic / Epipaleolithic (transition phases) and the Neolithic, the so-called Stone Age, so called because the elaboration of lithic tools has served archaeologists to characterize it (as opposed to the later Metal Age).
The transfer of the Paleolithic to the Neolithic occurs when human history appeared and generalized agriculture and livestock grazing (cattle), giving rise to agrarian societies. Normally, but not necessarily, it is accompanied by pottery work. In the Neolithic appear the first settlements and sedentary human settlements. The Neolithic period was followed, according to the regions, by the Age of Metals or directly by the Ancient Age, in which arose the writing and civilizations.
Answer: The Texas annexation was the 1845 annexation of the Republic of Texas into the United States of America, which was admitted to the Union as the 28th state on December 29, 1845. The Republic of Texas declared independence from the Republic of Mexico on March 2, 1836. It applied for annexation to the United States the same year, but was rejected by the Secretary of State. At the time the vast majority of the Texian population favored the annexation of the Republic by the United States. The leadership of both major U.S. political parties, the Democrats and the Whigs, opposed the introduction of Texas, a vast slave-holding region, into the volatile political climate of the pro- and anti-slavery sectional controversies in Congress. Moreover, they wished to avoid a war with Mexico, whose government refused to acknowledge the sovereignty of its rebellious northern province. With Texas's economic fortunes declining by the early 1840s, the President of the Texas Republic, Sam Houston, arranged talks with Mexico to explore the possibility of securing official recognition of independence, with the United Kingdom mediating.
Explanation: Hope this helped it took a long time to type!
Gullies: severe erosion happens due to water action. Slope more than 5 percent areas. Soil loss also > 10t/ha/annumRavines: extreme erosion due to water. Due to riverlet/stream areas will appear. Slope also > 5 percent
If I had written your question in English, I could have helped you
