NEW! CBSE Papers PDF: Class-X, Class-XII
Disclaimer: This website is not at associated with CBSE, For official website of CBSE visit - www.cbse.nic.in
All Questions are compulsory.
Wherever necessary, the diagrams drawn should be neat and
Q.1 BOD of two samples of water A and B were 120 mg/L and
400 mg/L respectively. Which sample is more polluted ?
Q.2 Name the type of interaction seen between whale and
the barnacles growing on its back.
Q.3 Which one of the following is used in apiculture:
Hilsa, Apis indica, Sonalika
NEW! GET EMAIL ALERTS
CBSE Sample Papers
Home | CBSE-X | CBSE-XII | Papers | E-Books |
© 2020 - CBSEPORTAL.COM - India's First Online Community Website For CBSE Students.
CBSE X, CBSE XII, AIEEE, AIPMT - Papers, Mock Exams, Books, Results and More...
Disclaimer: cbseportal.com is not at associated with CBSE, For official website of CBSE visit - www.cbse.nic.in