Answer:
National parks provide a safe home for native plants and animals. They help keep the air and water clean. National parks give us places to enjoy. National parks help us to learn about the environment, history and wild life.
The structure that would suit the text would be<span> compare and contrast structure.
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Voter registration or enrollment is automatic in most advanced industrial nations, most of which are democracies, but is a requirement in many countries before a person is entitled or permitted to vote in elections. So it would be party registration.
The answer is A. too broad
