Final answer:
Some petroleum-based household items include plastic containers, synthetic fibers, and cleaning products. Cellphones contain petroleum-based materials like plastic casing and batteries.
Step-by-step explanation:
Some household items that are petroleum based include plastic containers, synthetic fibers like polyester, and cleaning products like detergents and solvents. In terms of a cellphone, there are several petroleum-based products that can be identified.
The plastic casing of the cellphone, as well as the screen protector, are made from petroleum-based plastics. The battery of the cellphone also contains petroleum-based materials, such as lithium-ion.