From my understanding, limestone wears down by water (rain and snow). This could be bad if the limestone is outside in a rainy/snowy environment.
Answer: Editing and proofreading are essential parts of the writing process. They help with the effectiveness of your writing style and the clarity of your ideas. ... However, when you proofread, you are focusing on finding and correcting errors in writing, grammar, and language.
Explanation: im not exactly sure what ur asking for....
a. He drew a horizon line to show where the sky and earth appear to meet.
C is the reasonable answer.
Billy because it tells you that his father had 5 children so he is the fifth.