G the video demonstrates how stratospheric ozone is depleted by the reaction of ozone with trace constituents of the stratosphere. complete the catalytic destruction reaction of ozone when it reacts with a catalyst. reaction 3 is the net overall reaction when reactions 1 and 2 are added.

Ms. sullivan's class is designing a miniature roller coaster. after first setting it up, they find that it didn't have enough speed to go through the loop de loop. instead of taking out the loop, they decide to increase the height of the first hill the coaster goes down, and this adds the speed needed to make it through the loop. what would be a drawback to this plan in real life? a) no one likes loop de loops. b) there is no downside to this plan. c) a higher hill means a scarier ride. d) a higher hill takes more time and material to build.