27 thoughts on âThe Weakest Solar Cycle in 100 Yearsâ. 1  Worrying about changes over 100 years of the lifetime of the sun is equivalent to worrying about 1 minute in the course of a human lifetime. 2  Person using the handle CosmicLettuce, you seem to have mis-read the article.
You've already chosen the best response. There are many spheres, like biosphere, geosphere, lithosphere, atmosphere, hydrosphere, cryosphere. The geosphere is the earth itself, the rock,sand,lava etc. It consits of the crust, upper mantle, lower mantle, outer core and inner core.
The Earth consists of three layers: the crust, the mantle and the core. The core, the innermost layer, is rich in iron and very dense. It can be further subdivided into the inner and outer core. The mantle is the intermediate layer of the Earth and can be subdivided into the inner and outer mantle.Most of the mantle is a thick fluid that moves in currents, but the very outermost portion of the outer mantle is solid. This portion and the solid crust make up the lithosphere.hile it is the thinnest layer of the Earth at only 60 to 70 kilometers thick, it makes up the majority of the lithosphere and is the portion of the Earth that supports life. The crust surface is shaped by characteristics of the lithosphere that cause formations like mountains and fault lines.