Information Technology (IT) Information technology (IT) is the use of any computers, storage, networking and other physical devices, infrastructure and processes to create, process, store, secure and exchange all forms of electronic data. Download this free guide.
A. Troposphere B. Stratosphere C. Mesosphere D. Thermosphere. A: Troposphere is the atmospheric layer closest to the Earth's surface. Log in to see link for more information. Question|Asked by janiya. Asked 314 days ago|6/9/2016 2:02:09 PM. Updated 314 days ago|6/10/2016 2:53:26 AM.
The stratosphere is the second layer of the atmosphere and contains the ozone layer. the sun. Above the stratosphere, a drop in temperature marks the beginning of the next layer, the mesosphere. The mesosphere begins 50 kilometers above Earth's surface and ends at an altitude of 80 kilometers.