Subject: Five-membered ring 18 general knowledge quiz questions. It should take around 4 minutes to complete all the questions.

Subject: Thiazole-2-carboxylic acid phenyl ester 38 general knowledge quiz questions. It should take around 8 minutes to complete all the questions.

Subject: Thiazole-2-carboxylic acid ethylamide 28 general knowledge quiz questions. It should take around 6 minutes to complete all the questions.

Subject: Thiazole-2-ol 15 general knowledge quiz questions. It should take around 3 minutes to complete all the questions.

Subject: Alpha-hexachlorocyclohexane 16 general knowledge quiz questions. It should take around 4 minutes to complete all the questions.

Subject: Hexachlorobenzene 16 general knowledge quiz questions. It should take around 4 minutes to complete all the questions.

Subject: Detritivore 10 general knowledge quiz questions. It should take around 2 minutes to complete all the questions.

Subject: Decomposer 18 general knowledge quiz questions. It should take around 4 minutes to complete all the questions.

Subject: Microbial degradation 9 general knowledge quiz questions. It should take around 2 minutes to complete all the questions.

Subject: Aerobic degradation 8 general knowledge quiz questions. It should take around 2 minutes to complete all the questions.

Subject: Gamma-hexachlorocyclohexane 19 general knowledge quiz questions. It should take around 4 minutes to complete all the questions.

Subject: Tetracene 19 general knowledge quiz questions. It should take around 4 minutes to complete all the questions.

Subject: Fluoranthene 13 general knowledge quiz questions. It should take around 3 minutes to complete all the questions.

Subject: Nitrogen-containing compound 16 general knowledge quiz questions. It should take around 4 minutes to complete all the questions.

Subject: Perylene 15 general knowledge quiz questions. It should take around 3 minutes to complete all the questions.

Subject: Methyl phenyl ether 16 general knowledge quiz questions. It should take around 4 minutes to complete all the questions.