clean air is of concern to most americans. the environmental protection agency (epa) has set forth guidelines for business,

industry, and private citizens to follow to improve air quality. all but one is a guideline of the epa to improve air quality.

that is

check and replace air filters regularly

reduce, reuse, and recycle whenever possible.

fix leaking faucets and minimize outdoor water use.

reduce the amount of particulate matter by limiting burning

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.