Which is the largest frog in the world?

1. Which is the largest frog in the world?



2. Which is the most abundant metal in the earth crust?



3. Which is the rarest element on the earth’s crust?



4. Which metal burns in water?



5. Who discovered petrol car?



6. Who discovered sewing machine?



7. Which instrument is used to measure relative humidity?



8. Which glass is used to build the body of a car?


9. Which is the best conductor of electricity?




10. Who wrote the book ‘Origin of Species’?



11. Name the carbohydrate that is not digested by human beings?



12. What is the name of the science which deals with production, control and application of very low temperature?



13. What is the circular opaque disc in front of the eye with a hole in the centre?



14. Who said “A bird is an instrument working according to the mathematical laws?



15. Which is the only liquid non-metal?