One similarity is that both antibiotics and disinfectants help keep people healthy. The difference is antibiotics inhibit or kill microorganisms while disinfectants only kill them.
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I will describe it as classificaton. This is usually made with a classification tree, or the dicotomous key.
A Lute - and a guitar.
An obvious answer is that the sources for the energy conversion is that the resources are renewable
A difference between gyres and currents is that currents are formed by the wind, but gyres are formed by currents.
Students need to be able to look at two objects or elements in text and be able to describe the similarities and differences among them.
It depends on what kind of relationship. If it's business wise, then it can describe a relationship between products and sales. If it is mathematics wise, then it can be used to describe a relationship by showing the differences and similarities of different products.
What are the differences typhoon signal and describe \
describe differences between northbridge and southbridge?
resistance
There are no similarities. Fedora (or any other Linux distribution for that matter) doesn't really care about file extensions; they aren't used by most programs, and are not required to identify file types.
http://en.wikipedia.org/wiki/Antibiotic