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The largest crocodile species in the world


There are 14 known species of crocodiles in the world now living on five different continents, but the largest of these species is the so-called saltwater crocodile, which is also the largest surviving creature of the reptile group, and is the largest predator animal living on the land in the world. The length of the crocodile is usually four meters long, but its weight can reach a full ton.

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The most beautiful cities in Morocco

City of Chefchaouen The city is famous for its ancient history and its magnificent architectural construction. It is famous for its buildings and its blue and white walls, so it is called the Blue Pearl. Marrakech city Marrakech is one of the most important tourist cities of Morocco and the capital of the Andalusian Empire. It is characterized by its beauty and its beautiful nature. The harmony between the beauty of the present and the splendor of the past includes many historical walls, buildings and giant gardens. Tanger city It is one of the sixth largest tourist cities in Morocco and one of the most important cities in Morocco. It receives many foreign tourists each year to come to know the best places of tourism in Morocco because of its prominent tourist attractions.
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What is the light

Visible light is part of the electromagnetic spectrum extending from 700 nm wavelength, up to 400 nm wavelength, in other words visible light is a part of the electromagnetic wave that is generated and has all wavelengths. There are many attempts to measure the speed of light throughout history. It is logical and logical to think of the law of speed, which states that it is equal to distance divided by time, but with light, it is not that simple, it is very fast, Which is equal to (299,792,458 m / s).
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