<span>"and his smile showed red lips and pointed teeth." is a good hint.
If you think about it, this line is the only one that would be used to describe an animal.
You can ask yourself, what do you think of when you read that line.
When I read it I could almost imagine a predator like a wolf snarling, showing it's vicious teeth. In effect, when he opened his mouth to smile it's like you're getting a glimpse into him and his nature.
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Answer:
Green roofs help reduce the Urban Heat Island Effect, a condition in which urban environments absorb and trap heat. A green roof's plants remove air particulates, produce oxygen and provide shade. ... Another important benefit of green roofs is their ability to reduce and slow stormwater runoff in urban environments
yeah im pretty sure the answer is D