1. Which of the following carries malaria?   Cockroaches   Mosquitoes   Bats   Earthworms   Hint Half-n-half Clue   2. How many teeth does an average human adult have?   36   31   33   32   Half-n-half Clue   3. Which of the following helps keep body cool?   Mastication   Perspiration   Urination   Respiration   Half-n-half Clue   4. Bile is secreted by the   Gall Bladder   Stomach   Lungs   Liver   Half-n-half Clue   5. How is the age of a tree determined?   By measuring its girth   By counting the annual rings in a cut trunk   By counting the number of its branches   By measuring its height   Half-n-half Clue   6. Farmers can keep their soil fertile by   Crop Rotation   Regular Tilling   Irrigation   Repeatedly growing the same crop   Half-n-half Clue   7. Which of the following is a parasite?   Pigs   Ringworm   Wolves   Zebra   Half-n-half Clue