Awater pollution expert gave a speech at a local gathering. read this excerpt from the speech. what is its purpose? water pollution is a growing threat to our environment. not only does it harm aquatic creatures, but it can lead to serious health problems in humans. when toxic waste from industries is dumped into bodies of water, the pollutants contaminate a variety of fish and shellfish. when consumers eat seafood contaminated by toxins, they risk being exposed to a variety of toxic heavy metals.
answers= a. to inform the audience about how water pollution harms humans and aquatic species
b. to entertain the audience by providing interesting facts about water pollution
c. to convince the audience to adopt a kinder attitude toward harmless sea creatures
d. to move the audience to feel how aquatic animals are vulnerable

Select the correct text in the passage. which line in this excerpt from amy tan's "mother tongue" shows that tan changes her language depending on the audience? i was giving a talk to a large group of people, the same talk i had already given to half a dozen other groups. the talk was about my writing, my life, and my book, the joy luck club, and it was going along well enough, until i remembered one major difference that made the whole talk sound wrong. my mother was in the room. and it was perhaps the first time she had heard me give a lengthy speech, using the kind of english i have never used with her. i was saying things like "the intersection of memory upon imagination" and "there is an aspect of my fiction that relates to thus-and-thus"—a speech filled with carefully wrought grammatical phrases, burdened, it suddenly seemed to me, with nominalized forms, past perfect tenses, conditional phrases, forms of standard english that i had learned in school and through books…