Answer:
mining is the main economic activity bc of the rich mineral resources.
Explanation:
The researcher in the research is most likely studying human-environment interaction and all of its consequences on the locale.
An anemometer measures wind speed :)
Sunlit zone is depth of water exposed to sunlight, trenches is a long narrow ditch.
The cascade volcanoes were formed by the subduction of the Juan De Fuca, Explorer and the Gorda Plate (remnants of the much larger Farallon Plate) under the North American Plate alone the Cascadia subduction zone