I want to know the answer to the following question:
The desert zone accounts for how much of the state's surface area?
All the background I'm provided with is that "The Samalayuca dunes cover an area of about 150 km2; it is an impressive site of the Chihuahuan Desert and is a protected area by the state due to unique species of plants and animals.". Is that enough to answer the question?
Answer: no