Answer:
Authors revise their work because they need to review a text/writing for spelling, grammar and punctuation errors so they dont confuse the reader.
Spender is the archaeologist for the fourth expedition. He reveres Mars and quickly leaves the crew to explore the planet by himself. He learns to read Martian. Finally, he decides that he should kill off the crew in an effort to preserve Mars.
For when you have to write a letter, or make an advertisement.
Answer:
Disfiguration of the child
Explanation:
