Published on Aug 9, 2020

Hills Background Images

License Info: Creative Commons 4.0 BY-NC
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A hill is a piece of land that rises higher than everything surrounding it. It looks like a little bump in the Earth. Since theyre higher than everything around them, hills are good places to get a nice view.

Hills are easier to climb than mountains. They are less steep and not as high. But, like a mountain, a hill will usually have an obvious summit, which is its highest point.

According to the U.S. Geological Survey, there is no official difference between hills and mountains. The United Kingdom and the United States used to define hills as summits less than 1,000 feet. However, both countries abandoned the distinction in the mid-twentieth century.

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Sometimes, you’ll find a hill made by people. This is called a mound. In the Midwest region of North America, a network of Native Americans known as the Hopewell created huge mounds. In fact, the Hopewell people are often called Mound Builders. The most well-known mounds are in Hopewell Culture National Historical Park, in the U.S. state of Ohio.

The Hopewell people built mounds in the shape of spirals and domes. These mounds are about 9 meters (30 feet) tall and sometimes as wide as 305 meters (1,000 feet).

Archaeologists are unsure what the mounds were used for. Some may have been burial mounds for important people, or they may have been used as astronomical observatories.

Natural hills are formed all the time, by different types of geologic activity. One of these activities is faulting, which happens because the rocks underneath the Earth’s surface are constantly moving and changing the landscape. Hills formed by faulting can eventually become mountains. The Himalayas in Asia, the tallest mountain range in the world, were once tiny hills. The Himalayas continue to grow because of faulting activity beneath the Earths surface.

Hills are also formed because of erosion, which happens when bits of rock, soil, and sediment get washed away and placed in a pile somewhere else.

Hills can be destroyed by erosion, as material is worn away by wind and water. Hills can also be created by erosion, as material from other areas is deposited near the hill, causing it to grow. A mountain may become a hill if it is worn down by erosion.

Hills Background images gallery for free download

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