b. Bird.
c. Leaf.
d. Tree.
Answer: c. Leaf.
5. Why do illegal logging and also forest fires make the number of proboscis monkeys' population decreasing?
Mengapa penebangan liar dan kebakaran hutan membuat jumlah populasi bekantan semakin berkurang?
Because illegal logging and also forest fires ...
Karena penebangan liar dan juga kebakaran hutan...
a. Kill all proboscis monkeys in Borneo.
b. Stop proboscis monkeys' population to grow.
c. Make people want to hunt proboscis monkeys.