Answer: C) Which is the world's busiest airport.
Explanation for this question is being written.
Answer: C) That
Answer: C) Adjective clause.
Answer: B) Who
Answer: B) B
Answer: B) Which
Answer: A) Adjective
Answer: D) Which
Answer: A) Correct
Answer: D) That
Answer: D) Who
Answer: B) That
Answer: C) Whose
Answer: A) Who
Answer: C) Relative Clause (RC).
Answer: A) Which
Answer: B) In which.
Answer: A) Essential Clause.
Answer: D) Whose
Answer: B) That has the cool flame design.
Answer: B) Incorrect
Answer: C) Where
Answer: B) Whose
Answer: A) Defining relative clause.
Answer: C) Which
Answer: B) Of which influenced.
Answer: A) That
Answer: B) In
Answer: A) The book I read is very interesting.
Answer: C) C in which.
Answer: C) Who
Answer: D) A free adjectival clause is a clause that provides additional information and can stand alone.
Answer: A) Which leads.
Answer: A) Main
Answer: D) D
Answer: B) Where
Answer: A) She touched.
Answer: A) Whose