Whats the theme of ''the winner is...' passage by trevor jackson

How does this image the reader to understand seismographs?

What do we call a two-syllable metrical foot that consists of one unaccented syllable followed by an accented syllable? a. anapest b.dactyl c.iamb d.elision

How did magellan's discovery of what is now considered the philippines directly affect the native populations that were living there? a.they disappeared deep into the new land and started another settlement b. they became aggressive after having a new religious view upon them c. they became restless to travel the world on the ships they encountered d.they became angered over losing their lands' raw goods like fruits and spices