Adject clause usually begin with a relative pronoun, or a relative verb.
Answer:
Fads can have a positive impact on people's lives.
I would say two: death is stronger than the earth and sea
Answer:
The purpose of connecting sentences, ideas, and paragraphs is to guide the reader along the path you develop. That is a solid way to prove an argument. An essay writer does not leave it to the reader to make assumptions or to fill in the blanks.
There have many accidents during airshows; for example, last year the wind toppled a tent and equipment on top of bystanders.