Sharp glass migt cut your hand, is that a fact or opinion?

Why is one side of the moon called the dark side of the moon?

What does twain find ironic and hypocritical about human patriotism?

Which of the following is a complex sentence? a. after henry submitted his essay, he realized that he hadn't proofread the last page. b. identity theft is a growing problem, especially among seniors. c. we didn't have enough potatoes for dinner, so we served rice instead. d. jim tried to watch a video on a device connected to a crowded wireless network; as a result, the video stuttered and froze.