Login
Login
Sign up
Start
Mathmania
Teacher tutorials
TOP
Subjects
Bridge Course
Testworks
Subject updates
Ya+
News
Send feedback
See more
Contacts
About Us
Terms and Conditions
Privacy Policy
PDF chapter test
TRY NOW
Subjects
Science CBSE
Class 9
Sound
Production, propagation and types of sound
8.
Nature and types of sound
Exercise condition:
2
m.
Choose the correct answer
:
1
.
Dogs
can hear__________sound
Ultrasound
Infrasound
.
2
.
Sound can travel in__________
Vacuum
Solid
.
Login
or
Fast registration
Previous exercise
Exit to the topic
Next exercise
Send feedback
Did you find an error?
Send it to us!