Today, cobblestones have been largely replaced by quarried granite setts in the 19th century to have a better ride for vehicles. However, in the 20th century they again got replaced by asphalt.
AGP was the most common before the PCI Express
Corn has been and is today incredibly central to Cherokee diets. Deer and turkey meat has largely been replaced by hogmeat or pork. Cornbread, grits, hominy, poke salad, and lye dumplings are all traditional Cherokee foods.
Mercury. The metal gives off poisonous vapours - and has largely been replaced by alcohol.
yes
yes
No, acetanilide is not a narcotic. It is an organic compound that has been used historically for its analgesic and antipyretic properties, but it has largely been replaced by safer alternatives due to its potential toxicity.
When the batteries currently available today have been replaced with something far, far better then yes
A PATA can be used to connect older hard drives to a computer internally, as it was a common interface. The PATA format has largely been replaced by SATA.
Nothing would happen. Today Morse Code has been replaced.
battery now is more high-tech , or as you can say much faster and better
MFC is the Microsoft Foundation Class library which provides the Windows Application Framework Extensions (AFX). The library is really nothing more than a class wrapper to make it easier to work with the Windows API using C++ classes. Although still used today it has largely been replaced by the .NET framework.
It depends on in which capacity something has replaced hydrogen. In blimps, for example, hydrogen has been replaced by less volatile gases such as helium. In the Universe itself hydrogen is still the most abundant of (non-dark) matter. It is converted into other elements (largely helium) in stars and supernovae.