Subject :NSO Class : Class 6
What is common character among the given animals? 
AThey all respire by gills.
BThey all have streamlined body.
CThey all reproduce by laying eggs.
DThey all have slippery scales over body.
all of them have scales on their body
Ans 1:
Class : Class 6
I don't think octopus lays eggs, does it?
Ans 2:
Class : Class 7
the answer is c
Ans 3:
Class : Class 7
c