Clear examples of pollution’s negative consequences would best serve the purpose of informing readers about seasonal animal migrations.
entertaining readers with a story about nature.
persuading readers that pollution is not a problem.
persuading readers to take action to stop pollution.

Using context clues read the sentence, then use context clues to determine the definition of parameters. setting clear parameters, such as rules, guidelines, or instructions, people understand what is expected of them. what is the definition of parameters? which type of context clue is used in the sentence?