Subject: Quick-release pool cover 9 general knowledge quiz questions. It should take around 2 minutes to complete all the questions.

Subject: Remote-controlled pool cover 16 general knowledge quiz questions. It should take around 4 minutes to complete all the questions.

Subject: Solar-powered pool cover 20 general knowledge quiz questions. It should take around 4 minutes to complete all the questions.

Subject: Gear-driven pool cover 8 general knowledge quiz questions. It should take around 2 minutes to complete all the questions.

Subject: Vinyl pool cover 32 general knowledge quiz questions. It should take around 7 minutes to complete all the questions.

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

Subject: Plastic pool cover 9 general knowledge quiz questions. It should take around 2 minutes to complete all the questions.

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

Subject: Recyclable pool cover 8 general knowledge quiz questions. It should take around 2 minutes to complete all the questions.

Subject: Biodegradable pool cover 8 general knowledge quiz questions. It should take around 2 minutes to complete all the questions.

Subject: Non-toxic pool cover 8 general knowledge quiz questions. It should take around 2 minutes to complete all the questions.

Subject: Environmentally-friendly pool cover 9 general knowledge quiz questions. It should take around 2 minutes to complete all the questions.

Subject: Water-resistant pool cover 8 general knowledge quiz questions. It should take around 2 minutes to complete all the questions.

Subject: Green pool cover 9 general knowledge quiz questions. It should take around 2 minutes to complete all the questions.

Subject: Black pool cover 14 general knowledge quiz questions. It should take around 3 minutes to complete all the questions.

Subject: White pool cover 28 general knowledge quiz questions. It should take around 6 minutes to complete all the questions.