Question

which of the following should never be placed in a microwave oven? a glass mixing bowl. a stainless steel mixing bowl. foil. both steel bowl & foil.

Explanation:

Microwaves cannot pass through metal materials like stainless steel and foil. When metal is placed in a microwave, it reflects microwaves, which can cause arcing, damage the oven, and create safety hazards. Glass is microwave-safe as it allows microwaves to pass through and heat the food inside.

Answer:

D. Both steel bowl & foil.