No. The early Earth's atmosphere contained a lot of ammonia, for example.
it will always change
The atmosphere is not always the same because it is always changing due to weather patterns and pollutants in the air
The earth's atmosphere can be imagined as the same relative thickness as the varnish on a model globe.
yes, but not always it depends on the size
yes
The particles outside the Earths atmosphere are called, meteoroids.
how do geologists think earths atmosphere is formed
The ozone layer.
The Moons lit portion is always about 50% excluding The light bounced by the Earths atmosphere
STRATOSPHERE
Thermosphere, it is also the atmosphere with the highest temperatures.
Meteoritesis what we call stones that enter the earths atmosphere.