Earth's present atmosphere is believed to have originated from volcanic activity early in the planet's history. Volcanoes released gases such as water vapor, carbon dioxide, and nitrogen, which eventually formed the atmosphere over billions of years.
Nitrogen is the largest component of Earth's present atmosphere, making up about 78% of the total gases in the atmosphere.
Oxygen makes up about 21% of Earth's lower atmosphere by volume.
The approximate percentage of oxygen in Earth's lower atmosphere is around 21% by volume.
The approximate percent of oxygen in Earth's lower atmosphere is around 20.95% by volume.
The density of Earth's atmosphere decreases with altitude. As you move higher up in the atmosphere, there are fewer molecules of gases present, leading to lower density.
The element "Oxygen".
Nitrogen is about 79% of the Earth's atmosphere.
Nitrogen is the largest component of Earth's present atmosphere, making up about 78% of the total gases in the atmosphere.
Carbon dioxideMethaneNitrous Oxide
Oxygen makes up about 21% of Earth's lower atmosphere by volume.
There is good ozone and then there is bad ozone. Good ozone is present in the earth's atmosphere.
Ozone layer protects us. It is present in the stratospheric region of atmosphere.
Oxygen (O2) was not present in early Earth's reducing atmosphere. It only became abundant in the atmosphere due to the photosynthetic activity of cyanobacteria and other early organisms.
The approximate percentage of oxygen in Earth's lower atmosphere is around 21% by volume.
The approximate percent of oxygen in Earth's lower atmosphere is around 20.95% by volume.
The density of Earth's atmosphere decreases with altitude. As you move higher up in the atmosphere, there are fewer molecules of gases present, leading to lower density.
Many elements only form through high temperatures and pressures... both of which are present int the Sun - but not in the Earth's atmosphere.