16. The Dingo fence in Australia is 3,500 miles long.
Known as the Great Barrier Fence or the Wild Dog Barrier Fence, the Dingo fence was built to keep Australian wild dogs, or dingoes, that were a potential threat to the sheep farmers in the the southeastern part of Australia. In order to protect the farming land, one of the largest man-made structures in the world was built in between 1880 to 1885. It is also the largest fence in the world, with an astounding 3,500 miles in length. Twenty-three staff members of the Department of Natural Resources and Water, patrol the fence and ensure its stability.
17. Two big mountains on Earth are undergoing growth and shrinking process.
Formed roughly 480 million years ago, the Appalachian Mountain, often called the Appalachians, are a system of mountains in eastern North America. It was once recorded to be as tall as the Rocky Mountains and the Alps, but naturally occurring erosion has affected it greatly. Today, the United States Geological Survey (USGS) points out that its highest peak, which is Mount Mitchell is only 6,684 feet high.
The Himalayan mountains used to be as tall as the Rocky Mountains. But today, due to the constant collision of India into southern Asia, its highest peak, which is the Mt. Everest is 29,029 feet high, which is taller than the Rocky Mountains. Rainwater is also a major issue that subjects the Himalayan mountains to erosion. But, compared to the Appalachian Mountains, it is considerably small. According to a geological survey, it is estimated that these mountains are growing 5 mm per year.
18. With an estimated rate of 1 meter per year, the Dead Sea is rapidly sinking.
The Dead Sea is a hypersaline lake, which is 304 m (997 ft) deep. It gained its name because of its high salinity that stops any vegetation or life from thriving in it. It is 50 km (31 mi) long and 15 km (9 mi) wide at its widest point and is 9.6 times saltier than any other ocean in the world. The high salinity allows people to float in the lake and attracts a lot of tourists from around the world. The Geological Institute of Limnological Research studies the lake and estimates that the lake is sinking by an alarming 1 meter per year. Between 1950 and now, the lake has shrunk by more than 40 meters.
19. Earth’s southernmost continent, Antarctica, is the largest desert in the world.
Antarctica covering 14,000,000 square kilometers (5,400,000 square miles), is the fifth-largest continent in the world and the largest desert in the world. The idea of desert brings thoughts about no life and vast land covered in sand. But in geological terms, it is used to define a place that has little or no moisture and is uninhabitable. Antarctica has an annual precipitation less than 51 mm, making it hard for life to thrive there.
20. China borders 14 countries.
Russia is the biggest country in the world, but China borders 14 countries. The 14 countries bordering China are: India, Pakistan, Afghanistan, Tajikistan, Kyrgyzstan, Kazakhstan, Mongolia, Russia, North Korea, Vietnam, Laos, Myanmar, Bhutan, and Nepal.
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