It is not necessary for all components to be made in the USA.
plastic bag
plastic bag
Heterogeneous materials can be separated as they are made from separate components. Oil and vinegar salad dressing is an example of heterogeous product.
IT means that the components used in that particular product are made to save energy at a different rate. For example, in the 90's refridgerators were made with bigger heavier fan motors that drew more energy to run then the current ones. Look for the little star with a tail on any appliance product and that is an energy saving product.....
How do you identify such a product? There are two criteria. First, it must be a product, which is to say, something man-made which you could hypothetically purchase, if you had enough money to pay the sale price. Second, it must be aesthetically pleasing to you, must appeal to your senses. You have to think that it is beautiful. This is why this question cannot be answered by me--it has to be answered by you. You have to think it is beautiful, not me.
Heterogeneous materials can be separated as they are made from separate components. Oil and vinegar salad dressing is an example of heterogeous product.
There is engine blocks made with modular components.
Eggs used in mayo in whatever flavor are derived from basically eggs and some type of oil. They're not milk based components.
Gum is not an element but a compound. It is made up of various components such as synthetic polymers, softeners, flavorings, and sweeteners blended together to create the final product.
The time for inventions and ideas to make it into the manufacturing stage varies. New products must have prototypes made, tested, and modified. Inventors often must do market testing. And inventors must entice investors and a manufacturer to take on the product. All this can take years.
Yes, ephedra can cause a reaction in a urinalysis. If the product has been take, it must be made known to the testers.
A product made of wood