Read the following passage:

The Amazon rainforest is a vast ___(X)___ rainforest located in South America, covering an area of over 6.7 million square kilometers. It is home to an estimated 400 billion trees, representing more than 16,000 species, as well as millions of different plants, animals, and insects. The Amazon rainforest is known for its high levels of biodiversity and is an important source of ___(Y)___ for the planet. It is also an important source of income for the local communities that rely on the forest for their ___(Z)___.