the majority of the atmosphere gases are found in which layer
The concentration of atmosphere gases varies depending on the atmosphere layers. The troposphere contains primarily nitrogen (78%) and oxygen (21%). The remaining 1% of the atmosphere is trace gases. The stratosphere contains a layer of relatively high concentrations of ozone.The lower part of the thermosphere is the ionosphere.he exosphere is the highest layer of the atmosphere. It extends up to 10,000 km (6,200 miles; 33,000,000 ft.) above the Earth. Satellites orbit the Earth in the exosphere.