TNPSC - 9th Standard Science Important Questions and Answers for Group 1, Group 2 and VAO Exam

1. Rust of Wheat is a ____ disease

Answer: Air-borne

2. Homogeneous mixtures are called_____

Answer: Suspension

3. The Nucleus of an atom has two components. What is that?

Answer: Proton and Neutron

4. The Maximum number of electrons that can be accommodated in an energy level is given by_____

Answer: 2(n2)

5. Cobalt 60 isotope is used in the treatment of_____

Answer: Cancer

6. What is SI unit of Mass?

Answer: Kilogram

7. The Unit of velocity is_____

Answer: m/s

8. The density of air is ______ times greater than that of hydrogen

Answer: 4

9. Who was Father of White Revolution?

Answer: Dr. V.Kurien

10. The Nobel laureate (1973) who deciphered the dance language of honey bees.

Answer: Karl Von Frisch

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