state the basic operating principle of an led???

Answer: Electroluminescence
Question: who is the only person who biked to the south pole?

Answer: Daniel Paul Burton
Answer this question: what episode of black mirror was hannah john kamen in??

Episode: "Playtest"
Q: what is the small country east of greenland?A: Iceland
Input: how many fire stations are there in london?

Output: 103
Please answer this: who is the returning officer for presidential election in india 2017?
Anoop Mishra