Is a form of pollution in which atmospheric moisture becomes chemically changed from exposure to certain toxic gasses. a. acid rain b. basic rain c. point source pollution d. non-point source pollution

A. Acid rain

Explanation:

The acid rain is a rain that is generated as a result of pollution. This rain forms when the moisture present in the atmosphere reacts with the sulphur dioxide toxic gas present as pollutant in the atmosphere. This will lead to the formation of sulphuric acid which affects the living beings and the man-made structures like buildings.

energy and particles

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.