Answer:
Gaining people by either Growing crops, selling to merchants, buliding nice homes.
Erosion. Sand is carried across the land through deposition where during the process many rocks along the way are reshaped.
I am not completely sure what this is asking but I believe it would be. That the evidence would be that the fish would be getting less oxygen hence causing noticeable breathing problems (probably best spotted by looking at the lungs).
the answer is B. Stratovolcano
Stratovolcano is composed by one layer of hardened lava, volcanic Ash, and Tephra
These volcanoes are identified by their periodic explosive eruption, spitting highly viscous lava that could spread in a far distance