Fish have scales that enable them to live in a water environment. this is an example of

Adaptation

Explanation:

Adaptation of fishes to the aquatic (water) habitat requires that they have the following:

- Scales, the hardened pigment that covers the skin of fishes and some other animals.

- Gills, the organ used by most fishes to breathe under water.

Other include tail, fin (dorsal, pelvic) etc. All these help the fish to adapt to the water environment.

events in order:

1.       vishnu schist

2. zoroaster granite

3. bass limestone

4. hakatar   shale

5. igneous intrusion

6. shinumo quartzite

7. dox sandstone

8. tapeats limestone

9. bright angel shale

10. muav limestone

11. temple butte limestone

12. redwall limestone  

nonconformity

answer: the unkar group shows angular unconformity because the layers are turned at angle.

unconformity

answer: specifically the angular unconformity occurs between the cambrian and precambrian rocks. the dox sandstone, shinumo quartzite, hakatar shale, and bass limestone have been filled. an angular unconformity occurs between the cambrian and precambrian rocks. the dox sandstone, shinumo quartzite, hakatar shale, and bass limestone have been filled.

disconformity

answer: the disconformities aremarked irregular lines between the sedimentaryrocks layers.