What are the 4 major types of Systems of Spheres

We call these four subsystems "spheres". Specifically, they are the "lithosphere" (land), the "hydrosphere" (water), the "biosphere" (living beings) and the "atmosphere" (air). Each of these spheres can be divided into sub-spheres.

Geographers break down the Earth's systems into four spheres that make up the world's air (atmosphere), water (hydrosphere), land (geosphere), and living organisms (biosphere).

Explanation:

if your own plato the answer is b. the fern transitioned from sporophyte generation to gametophyte generation.

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.