Question

Geography q:what are the major spheres of the atmosphere

Answer 1

tropopause. Its height ranges from 8 km (26,000 ft) at the poles to 18 km (59,000 ft) at the equator. Ozone generating reactions in the stratosphere is the main heat source.

Mesosphere: Above the stratosphere, temperature once again falls with increasing elevation, marking the mesosphere.

Thermosphere: The final rise in temperature occurs within the thermosphere above 80 km (50 mi). This heating is caused by the action of high-energy radiation from the Sun on the extremely thin air. The effect is that a negatively charged electron is knocked out of free oxygen (O), molecular oxygen (O2), or nitrogen oxide (NO), leaving them as positively charged ions. Their temperature is raised in the process, and because there are so few molecules per cubic centimeter at this height, it takes very little energy to produce large increases in temperature. Because the lower portion of the thermosphere is characterized by the presence of ions, it is also referred to as the ionosphere.

Answer 2

there are 6 spheres of the atmosphere are :
Troposphere
Stratosphere
Mesosphere
Thermosphere
Ionosphere
Exosphere