Below the thermosphere are the mesosphere, stratosphere, and troposphere. The mesosphere is the layer of the atmosphere above the stratosphere and below the thermosphere. The stratosphere is above the troposphere and below the mesosphere, and the troposphere is the lowest layer of the Earth's atmosphere.
The 700 mb level of the atmosphere is 10,000 feet in the air. This level is the second level used for measuring the atmosphere in the troposphere, so 1/5 of the atmosphere is located below it.
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The main gas in the mesosphere is nitrogen, which makes up about 78% of the atmosphere. Oxygen is also present, constituting about 21%. In this layer of the atmosphere, both gases are found in lower densities compared to the layers below. The mesosphere extends from approximately 50 to 85 kilometers above the Earth's surface.
Approximately 50% of Earth's atmosphere is located below about 5.6 kilometers, which is referred to as the troposphere. The troposphere is the lowest layer of the atmosphere where weather events and most human activities take place.
The minimum amount of oxygen needed to sustain a fire in the atmosphere is about 16% oxygen. Below this level, the fire would not have enough oxygen to continue burning.
Life occurs in the troposphere. It is the lower most level of the atmosphere and is the region below 12 km.
50 percent of the gases in Earth's atmosphere are found below an altitude of about 5.6 kilometers, or 18,000 feet. This part of the atmosphere is known as the troposphere and contains most of the weather and breathable air.
Almost 90 percent of the atmosphere's total mass is contained below 16 km. 99.999percent is below 100 km which is the Karman Line the demarcation which marks the beginning of space.
An oxygen saturation below 90 percent would indicate that the individual is not getting enough oxygen into their bloodstream. This could be a sign of respiratory issues or other health problems that need immediate attention.
Fifty percent of the gases that make up the atmosphere are found below the altitude of about 5.6 kilometers (18,000 feet). This is also known as the tropopause, which is the boundary between the troposphere and the stratosphere.
An oxygen deficient atmosphere is one that lacks a sufficient amount of oxygen to support human or animal life. It can occur in environments where oxygen is depleted, such as in confined spaces or areas with high levels of carbon dioxide, gases, or chemicals that displace oxygen. Breathing in an oxygen deficient atmosphere can lead to suffocation or loss of consciousness.
There is 13-16% oxygen in expired air but it depends on your size. See the link below.
50 percent of the gases that make up Earth's atmosphere are found below about 5.6 kilometers (3.5 miles) in altitude, which is roughly half of the total atmosphere's height. This portion of the atmosphere is known as the troposphere, where most weather phenomena and aircraft travel occur.
Oxygen must be at least 16% of the atmosphere to sustain the burning process. Below this level, fires may not be able to burn efficiently or sustain themselves.
Sleet requires temperatures to be below freezing in the lower part of the atmosphere and at the surface, so yes, it occurs in the winter.
Six percent is immediately reflected by the atmosphere.(Source: NASA.See the related question below.)