Flashlight, a cell phone, a hair dryer,eyeglasses, and a microwave are the products required scientific knowledge to develop.
Scientific knowledge is a broad set of principles and hypotheses developed using the scientific process to describe phenomena or behavior of interest.
The development of a flashlight, a mobile phone, a hair dryer, eyeglasses, and a microwave all needed scientific understanding.
Hence, a flashlight, a cell phone, a hair dryer, eyeglasses, and a microwave are the products that required scientific knowledge to develop.
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