David decided to present his informative speech on "How to Perform the Heimlich Maneuver." David opened by recounting how he saved his younger brother's life when he was choking on gum he had accidentally swallowed. Which strategy to maintain audience interest was David utilizing

Texas’ gulf coastal plains are the western extension of the coastal plain extending from the atlantic ocean to beyond the rio grande. its characteristic rolling to hilly surface covered with a heavy growth of pine and hardwoods extends into east texas. in the increasingly arid west, however, its forests become secondary in nature, consisting largely of post oaks and, farther west, prairies and brushlands.