Minerals can form deep inside Earth's crust by the crystallization process.
Answer:
One of the great contributions the Sumerians made to civilization was their many inventions. They invented the first form of writing, a number system, the first wheeled vehicles, sun-dried bricks, and irrigation for farming. All of these things were important for the development of human civilization.
The pronoun in the sentence is the word: Someone. The type of pronoun in the following sentence is an example of an indefinite pronoun. An indefinite pronoun is a type of pronoun that does not particularly indicate a person, thing or amount.
