Ground

A tornado is a tube of violently spinning air that touches the ground.

Two exceptions are that from 1908 to 1961 the server had to keep one foot on the ground at all times, and the adoption of the tiebreak in the 1970s.

Breakfast was undoubtedly crucial in getting Airbnb off the ground;

Small localized areas of low pressure can form from hot air rising off hot ground, resulting in smaller disturbances such as dust devils and whirlwinds.

When a horse gallops, all four hooves are off the ground at one point.

As the Han era concluded, the northern Chinese farmers who had long grown wheat discovered they could ground this grain into flour and knead it with water.

Because the city basically lies in swamp, the builders of the city had to dig canals to use the digging ground for getting the living ground higher.

Due to the thick layer of fen and clay present in the soil of the city, all the city's buildings were erected on wooden poles that are fixed into a sandy layer of the ground over 35 feet deep!

Snakes live on the ground, in trees, and in water.

Snakes cannot survive in places where the ground stays frozen year round so there are no snakes north of the Arctic Circle or in Antarctica.

At the Earth's surface, earthquakes manifest themselves by shaking and displacing or disrupting the ground.

The epicenter is the point at ground level directly above the hypocenter.

While it is still in direct competition its arch-rival Nike, Adidas has managed to garner much attention to the brand with new and improved designs from world renowned designer Jeremy Scott, and the introduction of new ground-breaking technology such as their Ultra Boost line of products.

The average NBA player can jump about 28 inches off the ground.