Mostly for the same reason you stay close to the surface of the planet - gravity!
The Earth's gravity is what keeps the layers of the atmosphere from diffusing into space. The particles of the atmosphere are held close to the surface of the Earth by gravity, creating a stable layer of gases around our planet.
The force of gravity binds the hydrosphere and lower atmosphere to earth.
The atmosphere of Earth is held in place by gravity. Gravity pulls air molecules towards Earth's surface, creating atmospheric pressure that keeps the atmosphere from floating away into space.
Earth is the only planet in our solar system known to have large bodies of liquid water on its surface and a protective atmosphere that allows life to thrive.
Earth is the only one we know of so far :)
The gravitational pull keeps the Earth's atmosphere close to the surface...
The Earth's atmosphere remains close to its surface due to gravity that keeps the gases from escaping into space. The atmosphere is held in place by the Earth's gravitational force, allowing it to envelop the planet and provide the necessary conditions for life to exist.
The gravitational force between the Earth and the atmosphere holds the atmosphere close, just like it holds you close to the Earth. (ground)
The Earth's gravity is what keeps the layers of the atmosphere from diffusing into space. The particles of the atmosphere are held close to the surface of the Earth by gravity, creating a stable layer of gases around our planet.
The white planet close to Earth is the Moon. It is Earth's only natural satellite, and its surface appears white due to the reflection of sunlight off its rocky, dust-covered surface.
The force of gravity binds the hydrosphere and lower atmosphere to earth.
The atmosphere is above the surface of the Earth because gravity pulls it towards the planet. The atmosphere contains gases that are essential for life, such as oxygen and nitrogen, and it helps regulate the planet's temperature by trapping heat from the sun.
The Earth has an atmosphere because it has the gravity necessary to keep the gases from floating off into space. The more mass a planet has, the more gravity it has, and the more gravity it has, the thicker an atmosphere it can sustain.
layer close to the surface is the top part of the mantle
layer close to the surface is the top part of the mantle
layer close to the surface is the top part of the mantle
layer close to the surface is the top part of the mantle