1. जीवविज्ञान   biology   geology   geometry   chemistry   Hint Half-n-half Clue   2. खगोलविद्या   calculus   astronomy   zoology   biology   Half-n-half Clue   3. इतिहास   botany   algebra   history   psychology   Half-n-half Clue   4. रेखागणित   chemistry   philosophy   geometry   geography   Half-n-half Clue   5. भूविज्ञान   philosophy   physics   biology   geology   Half-n-half Clue   6. कलन   calculus   botany   astronomy   chemistry   Half-n-half Clue   7. वनस्पतिशास्त्र   geology   biology   history   botany   Half-n-half Clue