General Knowledge - World Geography - Discussion
Discussion Forum : World Geography - Section 1 (Q.No. 18)
18.
The ionosphere includes
Discussion:
13 comments Page 2 of 2.
Mayank said:
1 decade ago
The ionosphere is a shell of electrons and electrically charged atoms and molecules that surrounds the Earth, stretching from a height of about 50 km to more than 1000 km. It owes its existence primarily to ultraviolet radiation from the Sun.
Sonam said:
1 decade ago
The ionosphere is a part of the upper atmosphere, comprising portions of the mesosphere, thermosphere and exosphere, distinguished because it is ionized by solar radiation.
http://en.wikipedia.org/wiki/Ionosphere
http://en.wikipedia.org/wiki/Ionosphere
Priya said:
1 decade ago
Is the ionosphere the topmost layer?
Post your comments here:
Quick links
Quantitative Aptitude
Verbal (English)
Reasoning
Programming
Interview
Placement Papers