What does ( cause i laugh like i've got gold mines / digging' in my own back yard ) mean

Select the correct text in the passage. which set of lines spoken by sebastian in act v, scene i, of twelfth night implies that olivia is not attracted to him simply because she is crazy? sebastian: this is the air; that is the glorious sun; this pearl she gave me, i do feel't and see't: and though 'tis wonder that enwraps me thus, yet 'tis not madness. where's antonio, then? i could not find him at the elephant; yet there he was; and there i found this credit, that he did range the town to seek me out. his counsel now might do me golden service; for though my soul disputes well with my sense, that this may be some error, but no madness, yet doth this accident and flood of fortune so far exceed all instance, all discourse, that i am ready to distrust mine eyes and wrangle with my reason, that persuades me to any other trust but that i am mad, or else the lady's mad; yet if 'twere so, she could not sway her house, command her followers, take and give back affairs and their despatch with such a smooth, discreet, and stable bearing, as i perceive she does: there's something in't that is deceivable. but here comes the lady.

(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.”)

Complete the paragraph about imperialism