Example of habitat degredation
Chromosems is the right answer
The researcher could look for the presence of proteins, because viruses have a envelope (capsid) composed of proteins that involve their genetic material. The capsid may have a helical or icosahedral structure and is extremely regular. Viroids cannot synthesize any type of protein, so differentiation is possible.
Monitoring water changes can provide clues about the activity of a volcano. A sudden change could predict a volcanic eruption. Hydrologists also identify the paths that water takes as it flows down a volcano's side. Understanding how water flows can help us understand how lava might flow.