a product is something that a brand makes- for example the iPhone is a product and Apple is a brand.
joint product has a high price value whereas by-product has a low price value. joint products are 2 or more products simultaneously produced. whereas by-product is recovered incidentally
i dont think i can question
Fission waste products: fission products - radioactive, mostly short lived beta and gamma emitters neutron activated materials - radioactive, mostly beta and gamma emitters unburned fissionable...
i have no idea and learn how to spell "waste"