10 Questions and Answers

Q1. Which quality of iron ore is best based upon iron content?

Ans. Magnetite, followed by hematite>Limonite>Siderite

Q2. In which sea Sunda Trench Lies?

Ans. Indian Ocean

Q3. Amravati is a tributary of which river?

Ans. Kaveri

Q4. Which river flows between Vindhyan & satpura ranges?

Ans. Narmada

Q5. In which only decade, India’s Population had shown negative growth?

Ans. 1911-1921

Q6. Sun is visible little before actual sunrise , because of which phenomenon?

Ans. Atmospheric Refraction

Q7. What does a lens with -5D number mean?

Ans. A concave less with a focal length of 20 cms.

Q8. What type of vibrations is produced in sitar wire?

Ans. Stationary Transverse

Q9. A typical human ribcage consists of how many ribs?

Ans. 24

Q10. What kind of forests cover maximum area in India?

Ans. Tropical Dry Deciduous Forests