Yes because there is no sense in going to school for a job that is not going to exist in the future.
Answer:
a red protein responsible for transporting oxygen in the blood of vertebrates. Its molecule comprises four subunits, each containing an iron atom bound to a heme group.
Hope this helps!
Here is a link of the meanings of Adjectives_nouns and pronouns and even more you might want. ^_^
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He began to cry because some one scared him