Answer:
Overfishing. Many authors have cited overfishing as the cause of the cod stock collapse. In the case of the Newfoundland cod, there were three distinct groups involved in harvesting the resource: local inshore fishermen, Canadian draggers and trawlers, and deep-sea foreign fishing vessels.
Explanation:
I’m guessing a volcano. Hopefully this is right.
Each rectangle is (18cm)(10cm)=180 square cm.
180 square cm/45 square cm=4. she cuts four triangles from each rectangle
(4 patches/rectangle)(32 rectangles)=128 patches
Answer=128 patches
Your answer is radiometric dating