<span>Disposable razor blades were invented in 1901 by Gillette.
Gillette is a company based in the United States, founded by King C. Gillette in 1901. He was an American businessman who saw the need for disposable razor blades, which is why he is considered the pioneer in the business.
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Answer:During the Age of Discovery during the 15th century, Portugal and Spain were the leaders. Those two countries were colonizing much of South America, Africa, and some parts of Southern Asia. Later on, France was one of the bigger colonization countries.
Explanation:
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Before 1453, Europeans had enjoyed relatively easy access to the East. Trade had been going on for centuries between Europe, the Indies (roughly South and East Asia) and China through the Silk Road, a land passage. However, in 1453, with the fall of Constantinople to the Ottoman Turks, tensions between Christians and Muslims rose, and the passage became a lot more restricted and dangerous.
This change motivated Portuguese navigators to try to find another route to the East through the ocean. The first promising strategy was the Cape Route of Bartolomeu Dias in 1488, around South Africa. However, there were other proposals that suggested going west. This is what Christopher Columbus attempted, which led him to discover America. These events led to the beginning of the Age of Exploration, which ended with the exploration of the polar regions in the 20th century.
I believe the answer is: Ego
According to Freud, Human's ego could give both positive and negative impact. The negative one is it often give a false sense of pride that make us arrogant, the positive one is that it make help us to maintain our core principles (such us choosing not to skip homework)
Global warming cause :
1) the increase in green house effect !
2) the increase in the use of extensive use of fossils fuel !
3) ozone depletion
4) deforestation
5) Plankton boom due to warming seas.
effects :
1)sea level increases
2) earth becomes more warmer and more colder
3) melting of ice and glacier
4) extinction of many animals
5) growth in diseases
prevention:
1) do not use fossils fuel
2) use of renewable energy
3) factories must eject suitable gases
4) afforestation
5) turn green and reduce wastes !
