It is a machine for keeping things cold .it is called a refrigerator or ice box people can put food items and drinks in refrigerator for those items cold or good for a longer time.it has a heat pump refrigerator take heat away from the air inside the fridge. The heat gets added to the air outside it is pump usually driven by an electric motor. There is alsoSamsung AC Service Center in Aurangabadbox available in the refrigerator that does not use electricity because they are filled with ice to provide the colder temperature.it slows bacteria growth.it exists everywhere in nature. They in a soil,air,water and the foods we can eat.it have nutrients moisture and favorable temperature, they can grow rapidly increasing in numbers to the point .There are the different types of refrigerator
https://homeappliances-door-step-service.com/samsung-refrigerator-service-center-in-ahmedabad/