What information can scientists obtain by studying seismographs from different locations? a. the location and strength of the earthquake b. when the next earthquake is going to happen c. the direction of motion of tectonic plates d. the amount of damage caused by an earthquake

Which of the following is true about the introduction of a non-native species to an environment? (a) they usually adapt quickly so they can have a positive affect on the environment. (b) they can disrupt the environment and cause much damage and devastation to native species. (c) they usually become predators in a food chain and to keep prey populations under control. (d) because the native species are better-adapted to the environment, the non-native species always end up dying out.