No longer than one or two sentences. I think.
The essential appositive in the sentence "astronomer maia mitchell discovered a comet in 1847 and went on to become the first professional female astronomer in the united states," is Maia Mitchel. The last option is correct.
An appositive consists on a noun or noun phrase that renames another noun right beside it. The appositive can be a short or long combination of words.
In this particular case, the words Maia Mitchell which is a proper noun is renaming the noun astronomer, which is right before it and constitutes the subject of the sentence.
The answer is C. We were able to see the planet Saturn. It is visible Through a telescope.
Answer:
There , four and two.
Explanation:
There - demonstrative adjective
Demonstrative adjectives are special adjectives or determiners used to identify or express the relative position of a noun in time or space. A demonstrative adjective comes before all other adjectives in the noun phrase. Some common demonstrative adjectives are this, that, these, and those.
Four & Two - adjective of number
Numbers are usually adjectives, because the information they give is how many of the noun.