Earth Subsystem (bio, hydro, atmo and geo).pptx

The Earth's 4 subsystem.

1. Lesson 4

2. GEOSPHERE

3. GEOSPHERE associated with solid portions of the Earth. It includes the continental and oceanic crust and all other layers of the Earth's interior. This includes all rocks, sediments and soils, surface landforms and the processes that shape the Earth's surface.

4. LAYERS OF THE EARTH

5. TYPES OF CRUST

6. What is the difference between continental crust and oceanic crust?

7. What is the difference between continental crust and oceanic crust? Oceanic crust is generally composed of dark-colored rocks called basalt and gabbro. It is thinner and denser than continental crust, which is made of light-colored rocks called andesite and granite. The low density of continental crust causes it to “float” high atop the viscous mantle, forming dry land.

8. atmosphere

9. Atmosphere a mixture of gases that surrounds the Earth.

10. HYDROSPHERE

11. HYDROSPHERE the total amount of water on a planet.

12. Approximately 71 percent of Earth’s surface is covered in water. Of all that water, only about three percent is freshwater. 

13. biosphere

14. The biosphere is made up of the parts of Earth where life exists. The biosphere extends from the deepest root systems of trees, to the dark environment of ocean trenches, to lush rainforests and high mountaintops.

15. an area classified according to the species that live in that location. Temperature range, soil type, and the amount of light and water are unique to a particular place and form the niches for specific species allowing scientists to define the biome. Biomes

16. SAVANNAH areas of open grassland with very few trees warm temperatures, moderate rainfall, fires, seasonal droughts, coarse grasses and diverse animals.

17. Tropical Rainforest a hot, moist biome where it rains all year long.

18. Marine Biomes

19. Desert

20. Fresh Water Biome

21. over approximately 1/5 of the Earth and contain less than 1% salt concentration.

22. m

23. TUNDRA BIOME

24. The tundra biome is a cold, frozen landscape. This biome has a short growing season, followed by harsh conditions that the plants and animals in the region need special adaptations to survive. Tundra form in two distinct cold and dry regions.