Based on the text below, answer questions 28 and 29.((
The turning tide for the turtles
With their exquisite shells, their smiling faces, their
deliberate movements, and their amazing sea–born agility, sea
turtles have always captured human imagination. Once severely
endangered, turtle populations are growing steadily thanks to
conservation projects worldwide. And with more than 8000 km of
coastline, large stretches of which are favorite nesting spots for
turtles, Brazil is one of the leaders in the race to protect them.
(Adapted from http//www.speakup.com.br)
The relative pronoun "which" in " (...) large stretches of which are favorite nesting spots for turtles." refers to:
