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Subject :NSO    Class : Class 7
Sound cannot travel through__.

Ans 1:

KRITHIGHA SHRI M P from KAMALA NIKETAN MONTESSORI SCHOOL, TRICHIRAPPALLI
Class : Class 8
Vaccum

Ans 2:

from ,
Class :
vacuum

Ans 3:

Aavanthika.S.R from St Thomas Residential school (STRS) trivandrum kerala, Trivandrum
Class : Class 7
Sound cannot travel through VACUUM 'cause there are no air particles to transfer the vibrations. it can travel through SOLIDS,LIQUIDS and GASES. It travels the fastest in SOLIDS

Ans 4:

Anu Sharma from DPS Noida, Noida
Class : Class 2
Vacuum

Ans 5:

from ,
Class :
Sound travels 4times faster in water than in air. So, air travels fastest in liquids

Ans 6:

KRITHIGHA SHRI M P from KAMALA NIKETAN MONTESSORI SCHOOL, TRICHIRAPPALLI
Class : Class 8
Hydrogen and Oxygen

Ans 7:

Anu Sharma from DPS Noida, Noida
Class : Class 2
Water

Ans 8:

from ,
Class :
Solid

Ans 9:

aryan from nand vidya niketan,
Class : Class 7
Vacuum

Ans 10:

Sambit Das from Calcutta Boys' School, Kolkata
Class : Class 7
Vacuum

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