The question was how do those things reduce effects of earthquakes so I think all that stuff that you wrote, unless you explained why it reduced the effects of earthquakes, you lose marks, e.g. I wrote stuff like "The building depicted in figure 2c was reinforced by steel. This means that it wont topple over or get damaged as much. This is how preparing buildings for earthquakes minimises economic losses, and saves lives because people don't get crushed," and I wrote stuff like that for three other points on a seismometer like you said, on the retarded sign they had up, and the temporary bank. I think they were looking for four really complex statements concisely explaining why the effects of eqs were reduced by the stuff.