I took this before so the first one b and and the second one is d
Shrew usually means an angered or a bad-tempered person.
An author might chose a first person narrator, because the first person narrator has a first person view of whatever the story is talking about. So a first person narrator makes an author more reliable and makes the story more personal.
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
