25 General Knowledge questions:
1. Sound pollution: If the sound intensity is “more than 85 decibels”, it is considered as sound pollution and that intensity of the sound is harmful to the ears.
2. Chlorofluorocarbons were invented by: Thomas Medley.
3. Ozone layer is present in: Stratosphere and it is 15 kilometers above the earth.
4. Cockroach contains “13-chambered heart” and its blood is white in color, as it doesn’t contain hemoglobin in its blood.
5. Salt water conversion to drinking water: is done by the process of “Reverse Osmosis”.
6. Rectified Spirit contains 95% alcohol.
7. Mango fruit is also called “king of fruits”.
8. Mercury is also known as “Quick Silver”.
9. Diesel engine was invented by “Rudolph Diesel” (Germany). First of all, he tested the engine with “peanut oil” to know how it works.
10. Bats live for 30 years.
11. The bird having the biggest wings: Albatross.
12. The coldest place in the world: Vostak (in Antarctica), – 57centigrade is average temperature.
13. The hottest place in the world: Aal Ajeejiya (in Libya), +58 degrees centigrade.
14. The smallest country, both in area and population is: Vatican (in Rome).
15. The water (H2O) was prepared scientifically by burning Hydrogen and Oxygen together: The scientist name is-“Cavendish” (in 1784 A.D).
16. Snail: It can live without sleep for 1100 days at a stretch (continuously).
17. Rat: Even though, it seems to be a small animal, it can dig around 280 feet lengthy hole inside the earth in one night. Such is the physical strength of it.
18. The smallest snake in the world is: “Leptotiplaps Carle”, which is just 4 inches in length and is found in Barbados.
19. Hot water has got more weight than cold water.
20. The world Ozone Day is celebrated on: September, 16.
21. Fuse wire (which saves the electric appliances in the house), by melting itself, when there is excess electric current supply in the wires, is made of: Lead and Tin.
22. D.D.T. which is used as spray to kill mosquitoes, etc. was by: the scientist “Pal Muller”.
23. Vitamin C is nothing but: Ascorbic acid.
24. Cow milk is rather little yellow (not pure white) in color, compared to other animals’ milk, because it contains: More amounts of “Riboflavin” (vitamin B2).
25. Land of thousand lakes: Finland.
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