Question: Could Quartz be useful to humans if plants died off and there was no oxygen?, Answer:Yes, Description of Quartz: mineral composed of silicon and oxygen atoms in a continuous framework of SiO₄ silicon–oxygen tetrahedra, with each oxygen being shared between two tetrahedra, giving an overall chemical formula of SiO₂, Fact1: Plants produce oxygen which is needed by humans to survive., Fact2: Quartz is a hard mineral substance made of several elements., Fact3: Quartz is composed of silicon and oxygen., Fact4: Quartz can be melted at high temperatures.
Step1: What are the constituents elements of quartz?, Step2: Is oxygen included in #1?, Wikipedia page for step 1: Quartz, Wikipedia page for step 2: Quartz, not_definitive_answer: False, incorrect_answer: False