<span>Growers would use selective breeding of domesticated plants. Genetic engineering allows researchers and scientists to propagate plants and species with the best genes that are immune to viruses.</span>
Answer:
These are some key factors for the rise of Spain to a status of global superpower in the 16th and 17th century:
- The expelling of the last remnants of Arabic domination and the final reunification of the whole territories of Spanish Christian kingdoms under the rule of a strong crown, the crown of Castille and Aragon, occurred in 1492. A modern Spanish kingdom was born then. King Fernando de Aragón and queen Isabela de Castilla financed the expedition of Columbus the same year and his next voyages.
- The coming of Columbus to the American continent and the following conquest expeditions. Gold, silver in great amounts are found and taken by the expeditions of Hernán Cortés to the Aztec Empire and of Francisco Pizarro to the Peru of the Incas, and by others. Spain gained access to enormous, unimaginable wealth not suspected before. This allows the crown to spend at home, to fight wars throughout Europe and keep a powerful army and a large navy; Spain was the most powerful European nation of the 16th century.
- Spain became an overstretched empire. It lost many wars, having to pay reparations and indemnizations, as well as debts with private bankers, all of which turned to be the final destination of American riches.
- "Drunk" with the easy flow of wealth from the colonies, the Spanish economy gradually lost dynamism, lacking innovation. A faltering economy in the 17th century, overstretching and lost wars sealed the progressive decline of the Spanish power.
Explanation:
Answer: Because Germany was located in between potential enemies to its west (Britain, France) and a major potential enemy also in the east (Russia).
Context/detail:
Let's assume your question is referencing "The Great War," which we now know as World War I. There was much military buildup and an arms race between the nations of Europe and increased tensions between the nations of Europe during the early years of the 20th century. Along with increasing expenditures on military forces and navies, there was pressure to form alliances with other nations to strengthen a nation's defenses in case there was a war. The Triple Entente and the Triple Alliance set up in opposition to each other.
The Triple Entente aligned Britain, France and Russia all as allies with one another, sworn to come to each other's defense in time of war. That put Germany and its allies (Austria-Hungary and Italy*) in between those powers. Germany knew that if a major war broke out, it would need to fight on both its western and eastern front.
Because Russia and France were tied together in an alliance, and opposed to Germany, the Schlieffen Plan (developed by German field marshall Alfred von Schlieffen) determined that a quick strike against France on the western front would be necessary in order to focus any war efforts against Russia in the east. This played into the start of World War I, because when only Germany (along with Austria-Hungary) and Russia were involved in war declarations after the assassination of Austria's archduke Franz Ferdinand, the first thing the German army did was to go and attack France.
*<em>Note: Italy changed sides when the Great War began and sided with the Allies (Britain, France, Russia, etc) rather than the Central Powers (Germany, Austria-Hungary, plus Bulgaria and the Ottoman Empire).</em>
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