Can someone pls tell me what this is

My dog sleeps beside my bed he wakes me up in the middle of the night to let him out. complete, run-on sentence or comma splice

Make sure the topic of your persuasive essay is not a. something someone else is writing about b. a fact c. something you have written about before

3. what is the purpose of a lead sentence or paragraph? to display your most convincing reasons and arguments to you revise the overall structure of your work to interest readers and introduce your writing style to add details and elaborate on your ideas