1. Quinine is obtained from the bark of which tree?   Redwood   Cinchona   Bunyan   Eucalyptus   Hint Half-n-half Clue   2. Farmers can keep their soil fertile by   Irrigation   Regular Tilling   Repeatedly growing the same crop   Crop Rotation   Half-n-half Clue   3. What is quinine used for?   Removing pimples   Curing Aids   Curing Typhoid   Curing Malaria   Half-n-half Clue   4. How many teeth does an average human adult have?   31   33   36   32   Half-n-half Clue   5. What is the pulse rate of an average healthy human being?   65 beats per minute   16 beats per minute   72 beats per minute   100 beats per minute   Half-n-half Clue   6. How is the age of a tree determined?   By counting the number of its branches   By measuring its height   By measuring its girth   By counting the annual rings in a cut trunk   Half-n-half Clue   7. Which of the following are known as "aves"?   Birds   Fish   Reptiles   Mammals   Half-n-half Clue   FREE PREVIEW: Last 10 Questions not a part of the free preview. Get Premium Membership to view all questions.