Mountains and rivers, forests, fields and lakes are the lifeblood of a person in the field.
Mountainous area is a landform area surrounded by flat land on the ground, with large absolute height and relative height. The height of a mountain from the ground is usually more than 100 meters, including low mountains, middle mountains and high mountains. Whether it is called a mountain depends on the local people.
Mountains are usually produced by plate collision or volcanism. Mountains will be slowly eroded by rivers, climate or glaciers. Some mountains will form a single peak, but most of them will form a mountain together.
The highest mountain on earth is Mount Qomolangma in the Himalayas of Asia, with an altitude of 8848.86 meters.
The highest mountain in the solar system is Mount Olympus on Mars, 2 1229 meters high.
There is no universally accepted definition of mountain. Height, volume, slope, distance from other mountains and continuous growth are all used as methods to define mountains.
In China's dictionary, a mountain is defined as "a protruding part of the earth and a stone on the ground".
Whether a mountain is called a mountain or not depends on the local people. The highest point in San Francisco, California, USA is called Mount Davidson, although it is only 300 meters. The height of Mount Scott near Lawton, Oklahoma is 25 1 m from the surrounding area to the top.
The only mountain in Shouguang is located between Sunjiaji and Majiazhuang, 8 kilometers southwest of the county seat. Because it has not increased for a long time, it is named "Jingshan". The longest point from east to west is 1.24m, and the widest point from north to south is 0.7m. The highest point is 0.6m from the ground and the lowest point is only 0. 1 m..
The definition of mountains by the United Nations Environment Programme includes:
The highest point is at least 2500 meters higher than the bottom.
The highest point is1500m-2,500m higher than the bottom, and the slope is more than 2 degrees.
The highest point is higher than the bottom 1000m- 1500m, and the slope is more than 5 degrees.
Local areas (with a radius of 7 kilometers) are more than 300 meters above sea level and 300- 1000 meters above sea level.
According to this definition, mountains cover 33% of Eurasia, 65,438+09% of South America, 24% of South America and 65,438+04% of Africa. Generally speaking, 24% of the earth is mountainous, and 10% of people live in mountainous areas. Most rivers in the world originate from mountains, and half of people rely on the water in the mountains.