I think the biomes that you traveled was a Grassland. This are places where hot, dry climates that are perfect for growing food and trees. And the conifers are the best example in your question. I hope you are satisfied with my answer and feel free to ask for more
Answer:
C. Desertification.
Explanation:
This is mainly caused by overgrazing and other human and natural activities in this areas. When desertification happens in a land area, it hampers the land ability to support life; affecting wild species, agricultural crops, domestic animals and people. Its negative effect includes famine of the inhabitants, also mass migration, as it can also cause extinction of some organisms or species.
Actinomyces, Bacteroides, Clostridium, Fusobacterium, Peptostreptococcus, Porphyromonas, Prevotella, Propionibacterium, and Veillonella, Sphaeromonas.