Which is a comma splice?

sometimes i write down my ideas, but other times i prefer to talk.

jon loves to lead, so he joined the student council.

when you start something new, it to have a model to follow.

sherri likes to take pictures, she is taking a photography class.

(1) fire extended humans’ geographical boundaries by allowing them to travel into regions that were previously too cold to explore. (2) it also kept predators away, allowing early humans to sleep securely. (3) fire, in fact, has been a significant factor in human development and progress in many ways. (4) other obvious benefits of fire are its uses in cooking and in hunting. (5) probably even more important, however, is that learning to control fire allowed people to change the very rhythm of their lives. (6) before fire, the human daily cycle coincided with the rising and setting of the sun. (7) with fire, though, humans gained time to think and talk about the day’s events and to prepare strategies for coping with tomorrow. the sentence that expresses the main idea is: (type the number of the sentence. then click “go.”)

Kyle and his brother have a marble set of the marbles 12 are blue this represent 50 over a hundred of all the marbles what decimal is equivalent to 50 / 100

Which most accurately analyzes this section? the author's structural choices foreshadow continued violent outbursts. the author's structural choices in this section create tension and urgency. the author's structural choices in this section provide the tale's conclusion d) the author's structural choices in this section create a sense of loving affection.