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There is not only a physical difference between plugs, but also an issue of electrical incompatibility. There are various voltages as well as frequencies used throughout the world. For instance, the United States uses 110-120V (60 Hz), while in many other countries, 220-240V (50 Hz) is used. This is because the electrical standards were originally […]

The Köppen climate classification  divides climates into five main climate groups, with each group being further divided based on patterns of seasonal precipitation and temperature. The five main groups are A (tropical), B (arid), C (temperate), D (cold/continental), and E (polar). Click here to jump below to see a world view of all climates. Color