Energy
What caused the Earth's atmosphere to exist?
Energy transfer occurs through conduction when there is direct physical contact between the atmosphere and Earth's surface. In this case, heat is transferred from the warmer atmosphere to the cooler Earth by molecular collisions.
Water could exist as a liquid on Earth without an atmosphere in specific conditions where the temperature and pressure allow for liquid water to form. However, without an atmosphere, these conditions would be less stable and water would be more likely to evaporate or freeze quickly due to the lack of atmospheric pressure and insulation.
The thin layer of gases surrounding the Earth is called the atmosphere. It plays a crucial role in maintaining the right conditions for life to exist on our planet.
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.
could water exist as a liquid if we don't have a atmosphere
Gravity ! The gravitational pull of the Earth 'traps' the atmosphere close to the ground.
It is found in the earth's atmosphere.
Nitrogen is about 79% of the Earth's atmosphere.
The Earth's atmosphere is necessary for life because it contains oxygen for respiration, regulates temperature, protects against harmful rays from the sun, and provides the air we breathe. Without the atmosphere, conditions on Earth would be too extreme for life to exist.
In the Earth atmosphere hydrogen exist only as traces: 0,000055 %.
Nitrogen is about 79% of the Earth's atmosphere.