hydrologic, rock, and tectonic
Sun and interior of Earth (core)
the thickest is mantle
The biosphere,the lithosphere,the atmosphere, and the hydrosphere
The four main divisions are geology, oceanography, meteorology and astronomy.
hydrologic, rock, and tectonic
The four main system of the earth are the geosphere , the hydrosphere, the atmosphere, and the biosphere
its maintaining a balance or equilibrium on Earth.... i think.... i dont really know haha sheep_dog/is*me
The person that answered this question before is an idiot. To put an advertisement. STUPID!!!! But what ever. Answer: I do not understand the question fully because I have the same question for homework. I just know the four main processes are the nitrogen, carbon, phosphorus, and water cycle are the four cycles.
As with almost everything else, the main source of energy is the Sun.
carbon, nitrogen, phosphorus cycles.
Sun and interior of Earth (core)
While there are more than four oceans on Earth, there are four which are considered the main ones. The four main oceans are the Pacific, Atlantic, Indian, and Arctic.
the thickest is mantle
The four main sources of water are, ground water, rivers or lakes,oceans,and ice
the four main parts of the earth is biosphere,geosphere,hydrosphere,atmosphere
Carbon cycles in earth\'s system when it is excreted by animals, and then absorbed by plants.