Answer:The Canadian Shield constitutes the largest mass of exposed Precambrian rock on the face of Earth. The region, as a whole, is composed of ancient crystalline rocks whose complex structure attests to a long history of uplift and depression, mountain building (orogeny), and erosion.
Explanation:
Ur Welcome
Answer:
tourism industry like working in a hotel or restaurant
Explanation:
I think it would be "A) Oil below Earth's surface absorbs precious water supplies." but I'm not positive