امتحان اللغة الانجليزية للصف العاشر الفصل الأول

   In 2009, an international team of scientists
visited Mount Bosavi and discovered an amazing    world of plants and animals there . They
discovered many colorful , tiny frogs , unusual species of fish , rare bats and
spiders , a Kangaroo that looked like a small bear , and a giant rat that was
as big as a cat . Altogether , the scientists found more than forty new species
of animals and plants.

*-Who
discovered the new rainforest ?

In
2009, an international team of scientists visited Mount Bosavi and discovered
an amazing    world of plants and animals
there . They discovered many colorful , tiny frogs ,
unusual species of fish , rare bats and spiders , a Kangaroo that looked like a
small bear , and a giant rat that was as big as a cat . Altogether , the
scientists found more than forty new species of animals and plants.

* How
many new species of plants and animals were discovered in the new rain forest ?

   In 2009, an international team of scientists
visited Mount Bosavi and discovered an amazing    world of plants and animals there . They
discovered many colorful , tiny frogs , unusual species of fish , rare bats and
spiders , a Kangaroo that looked like a small bear , and a giant rat that was
as big as a cat . Altogether , the scientists found more than forty new species
of animals and plants.

What does the underlined pronoun (they) refer to?