(1) earth's crust is made up of relatively rigid plates that ride atop earth's hot, semiliquid mantle. (2) the plates are called tectonic because they're in constant motion. (3) they can move because earth's mantle is a very hot and semiliquid fluid called magma. (4) volcanoes are a result of magma rising up or erupting through a plate, particularly where plate boundaries are moving against each other. (5) also, when plates slide against each other, causing friction along adjacent plate boundaries, earthquakes frequently occur. (6) therefore, we often find volcanoes and earthquakes along plate boundaries. (7) plates may also collide. (8) when that happens, mountain ranges are formed. (9) for example, the collision of the plate carrying the indian subcontinent created the himalayan mountains when it collided with the asian plate.

what is the topic sentence for this passage?

Read the excerpt from act 3 of a doll’s house. mrs. linde: you seemed to me to imply that with me you might have been quite another man. krogstad: i am certain of it. mrs. linde: is it too late now? krogstad: christine, are you saying this deliberately? yes, i am sure you are. i see it in your face. have you really the courage, then—? mrs. linde: i want to be a mother to someone, and your children need a mother. we two need each other. nils, i have faith in your real character—i can dare anything together with you. krogstad [grasps her hands]. , , christine! now i shall find a way to clear myself in the eyes of the world. ah, but i forgot— how does the conflict in this passage develop a theme? mrs. linde creates a conflict by promising something she cannot give to krogstad, which develops the theme that empty promises can destroy relationships. krogstad continues the conflict by choosing clearing his name over having a life with mrs. linde, which develops the theme that you must often choose yourself over others. krogstad creates a conflict by deceiving mrs. linde about his intentions, which develops the theme that, in love, actions speak louder than words. mrs. linde resolves the conflict by committing to a new life with krogstad, which develops the theme that new beginnings are always possible.