Usenet is a network of servers in which spreads messages through newsgroups and the regular internet is a series of different servers
Decomposers are necessary to the food chain because they break down the results of the food chain into the basic elements that producers can then use to begin the process over again. Decomposers include groups of bacteria that help to speed up the decaying process of dead plants and animals.
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Physical hunger shows itself with physical feelings of emptiness in your stomach, rumbling accompanied by weakness. Psychological hunger is simply the desire to eat, accompanied by no physical proof that it is necessary at that moment.
"Exploded", because more people wanted to get work in factories, etc.. and they thought it was a better to work in industries then farming.
conditions were poor in most cases, and that led to the creation of unions in most cases.