Question

Which device uses solar energy to cook food?

Answer 1

solar cooker uses solar energy to cook food.

Answer 2

A solar cooker is a contrivance that uses the energy of direct sunrays as a  heat source for the purpose of cooking or to purify drink and other foods.

A solar cooker utilizes the energy of direct sunlight is environment-friendly.  

Many solar cookers have currently been used currently are relatively cheap, low-technology devices, although some areas traditional stoves and ovens.