Shweta Basu
from
Amity international School, Gurgaon
Subject :NSO Class : Class 8
What is the full form of LED?
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affaan
from
AL-FALAH INTERNATIONAL SCHOOL DPS JEDDAH, jeddah,saudi arabia
Class : Class 8
Light Emitting Diode...
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Kvsm Sourish
from
GANGES VALLEY SCHOOL, Hyderabad
Class : Class 8
Light Emmisive Display/Light Emmiting Diode
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Avi
from
Delhi Public School Vadodara, Vadodara
Class : Class 9
it's vacuum
because sound needs a medium to travel through
and their is no medium in the vacuum