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oceans are useful for many waysthey have moderating effect on the climate of the coastal regions
If you're talking in the sense of a learning environment, discussions can be very useful in understanding and gaining the opinions of others. This can be very useful in expanding your personal knowledge base as well as the knowledge of others.
It contains useful declarations.
Yes, it is useful for speaking with immigrants from Afghanistan who do not speak English very well.
Letters are useful to express the thoughts in written texts. With out letters it will be vocal/sign language only for communications
no one but them knew the language so it became a useful code language
== After English, Mandarin
Honesty and commitment are useful skills employers find valuable. Additionally, speaking a foreign language is another beneficial trait to have.
Well about 500 million people world wide speak it or some derivative of it so its pretty useful
In South and Central America, the most useful languages are Spanish and Brazilian Portuguese. In North America the most useful languages are English, followed by Spanish and French
German, Greek and Latin
It can be used for lots of programs, not just for the Web.