The most variable abundance in the atmosphere is
Water Vapour
and
Ozone
Hydrogen is the most abundant element in the universe, but it is relatively rare in the Earth's atmosphere. It makes up only about 0.000055% of the atmosphere by volume.
Water vapor is the most variable gas constituent in the atmosphere, with concentrations ranging from near zero in dry, cold air to high levels in warm, humid air. It plays a significant role in the Earth's weather and climate system.
The most abundant variable gases in Earth's atmosphere are water vapor (H2O) and carbon dioxide (CO2). Water vapor concentration can vary widely depending on location and weather conditions, while carbon dioxide levels have been increasing steadily due to human activities.
The troposphere is the layer of the atmosphere that contains most of the atmosphere's total mass. It is the layer where weather occurs and where most of Earth's air is found.
The three main components of the Earth's atmosphere with stable abundance are nitrogen (approximately 78%), oxygen (about 21%), and argon (around 0.93%). Nitrogen serves primarily as an inert filler, while oxygen is essential for respiration and combustion processes. Argon, while not biologically active, contributes to the overall pressure of the atmosphere. These gases maintain a relatively constant composition, playing vital roles in supporting life and various environmental processes.
The most variable abundance in the atmosphere is Water Vapour and Ozone
Nitrogen
Hydrogen and HeliumThe major component of Uranus's atmosphere is Hydrogen.
Hydrogen is the most abundant element in the universe, but it is relatively rare in the Earth's atmosphere. It makes up only about 0.000055% of the atmosphere by volume.
The most abundant variable gases in Earth's atmosphere are water vapor, carbon dioxide, and methane. These gases have varying concentrations that can fluctuate based on factors such as weather patterns, human activities, and natural processes.
On Earth itis found mostly in the atmosphere but only in traces: around 1 part in 20 million. Its abundance is unusually high in the atmosphere of Jupiter.
Nitrogen, about 3/4 of the atmosphere's volume.
The Earth's atmosphere has 21% oxygen
Water vapor is the most variable gas constituent in the atmosphere, with concentrations ranging from near zero in dry, cold air to high levels in warm, humid air. It plays a significant role in the Earth's weather and climate system.
Just under 80% of the Earth's atmosphere is made up of Nitrogen and just over 20% is made up of Oxygen.
Around 87 parts per billion in the earth's atmosphere.
The abundance of selenium in the atmosphere of Earth is very low, with concentrations typically ranging from 0.1 to 1 nanograms per cubic meter of air. Selenium is not a major component of Earth's atmosphere and is mainly found in soil, water, and food sources.