1. Farmers can keep their soil fertile by   Repeatedly growing the same crop   Irrigation   Regular Tilling   Crop Rotation   Hint Half-n-half Clue   2. Which food stuff turns blue-black when brought in contact with iodine?   Starch   Unsaturated Fatty Acids   Vitamins   Proteins   Half-n-half Clue   3. What is the everyday name for the plants that are called Gramineae?   Nuts   Grasses   Pulses   Legumes   Half-n-half Clue   4. Which of the following carries malaria?   Bats   Mosquitoes   Cockroaches   Earthworms   Half-n-half Clue   5. How many teeth does an average human adult have?   33   32   36   31   Half-n-half Clue   6. What is the pulse rate of an average healthy human being?   100 beats per minute   72 beats per minute   65 beats per minute   16 beats per minute   Half-n-half Clue   7. Bile is secreted by the   Lungs   Gall Bladder   Liver   Stomach   Half-n-half Clue