1. poisonous element that communicates infection.   Hint First letter clue   2. incompatibility or lack of uniformity.   First letter clue   3. amount produced or income earned.   First letter clue   4. bending of a ray of light due to change in density.   First letter clue   5. tendency to drive back or distaste.   First letter clue   6. center of turbulence or whirling motion.   First letter clue   7. reasoning with major premise, minor premise and conclusion.   First letter clue