1. Which is the
hardest material ever known in the universe
a)Platinum
b)Graphite
c)Diamond
d)Marble
Ans: c)Diamond
2. Which instrument
regulates the resistance or current in a circuit?
a)Volta cell
b)Rheostat
c)Generator
d)sonometre
3. The scientist who
formulated the “Germ theory of disease” is
a)Louis Pasteur
b)Hugo Devries
c) Lamarck
d) Griger Mendel
4. What is the relay
centre in our brain
a)Spinal cord
b) Thalamus
c)Mengines
d)Pituitary gland
Ans: b) Thalamus
5. Methane gas is
invented by the scientist
a)John Dalton
b)Alexandro Volta
c)Alexander Fleming
d)Thomas Alwa Edison
6. Which of the
following units is usually used to denote the intensity of pollution?
a)Milligrams
b)Kilogram
c)ppm
d)Parts per million
7. Nitrogen fixing
bacteria lives in the root tumours of pea plants is called
a)Rhizobium
b)Ecoli
c)Ecloi
d)Streptococcus
8. Which of the
following is not a viral disease?
a) avian flue
b)Malaria
c)Avian flue
d)Dengue fever
9. Richard Stallman
is in connection with
a)Internet
b)Free Operating
System
c)Computer virus
d)Search engine
10. Who among the
following in India was the first winner of Nobel prize in Physics
a)S. Chnadrasekharan
b)C. V Raman
c) V Ramakrishnan
d)Hargovind Khoranae
Ans: b)C. V Raman