Subject: Biochar stove 47 general knowledge quiz questions. It should take around 10 minutes to complete all the questions.

Subject: Conventional gasoline 34 general knowledge quiz questions. It should take around 7 minutes to complete all the questions.

Subject: Tobacco products 38 general knowledge quiz questions. It should take around 8 minutes to complete all the questions.

Subject: Non-renewable natural capital 33 general knowledge quiz questions. It should take around 7 minutes to complete all the questions.

Subject: Lightweight nozzle 38 general knowledge quiz questions. It should take around 8 minutes to complete all the questions.

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

Subject: E-engine 8 general knowledge quiz questions. It should take around 2 minutes to complete all the questions.

Subject: Liquefied petroleum gas (LPG) 14 general knowledge quiz questions. It should take around 3 minutes to complete all the questions.

Subject: Auto mechanics 14 general knowledge quiz questions. It should take around 3 minutes to complete all the questions.

Subject: Electric forklifts 11 general knowledge quiz questions. It should take around 3 minutes to complete all the questions.

Subject: Carbon capture technology 12 general knowledge quiz questions. It should take around 3 minutes to complete all the questions.

Subject: Motorcycle maintenance parts 17 general knowledge quiz questions. It should take around 4 minutes to complete all the questions.

Subject: Ethanol synthesis and ethanol 35 general knowledge quiz questions. It should take around 7 minutes to complete all the questions.

Subject: Pyrolysis and materials science 16 general knowledge quiz questions. It should take around 4 minutes to complete all the questions.

Subject: Gas cylinder safety and workplace safety 31 general knowledge quiz questions. It should take around 7 minutes to complete all the questions.

Subject: Head gasket and car 26 general knowledge quiz questions. It should take around 6 minutes to complete all the questions.