Apart from the richness of the flora that grows on hillsides and ravines, the Pululahua volcano in Ecuador is is a volcanic caldera <u>inhabited near the middle of the world</u>. Undoubtedly, a place where the energy of the earth is felt in each rock and in every cloud that comes and goes from the Pululahua.
Usted,because you use that when you talk to someone you are not familiar with
Answer:
I believe the answer is the first one, clases-llenas.
Explanation:
Clases is a feminine word (las clases, la clase), so it only makes sense for the adjective after it to be feminine as well (llenas). Please let me know if you still need help with this, and only mark as brainliest if you want!