A subordinate clause is a clause that contains both a subject and a verb, but cannot stand on its own because it does not convey a complete message. It needs the main sentence in order to clearly understand its thought. The subordinate in the given sentence is: the children enjoyed. This is an adjective clause, which modifies the noun "book". It is not introduced by any subordinating conjunctions.
Answer:
Science textbooks: Used to help inform reader on scientific discoveries, theories, etc.
Biographies: Used to help inform reader on the certain individual in which the biography was written for. Usually the biography is on someone famous from history.
Newspaper articles: Newspaper articles generally inform readers of events happening. However you must not most of it is subjective.
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To pass a law you have to go to the high courts
