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
Natural resources
Textbook based HOTS
8.
Multiple Choice Question Answer VIII
Exercise condition:
2
m.
1.
Which disease is not water borne?
Cholera
Asthma
Dysentery
Typhoid
2.
The supersonic jets cause pollution by thinning of:
\(CO_2\) layer
\(O_2\) layer
\(SO_2\) layer
\(O_3\) layer
Login
or
Fast registration
Previous exercise
Exit to the topic
Next exercise
Send feedback
Did you find an error?
Send it to us!