The solar cycle or solar magnetic activity cycle is the nearly periodic 11-year change in the Sun's activity (including changes in the levels of solar radiation and ejection of solar material) and appearance (changes in the number and size of sunspots, flares, and other manifestations).
Planet earth is generally thought of a composed of the atmosphere, the hydrosphere, the lithosphere and the biosphere. The geosphere is often used to mean the same thing as lithosphere - rocks and stones. If this is how you are using the word, then the geosphere consists of the crust, the mantle and the core. Comments.
Describe the four main spheres of Earth. 1.lithosphere 2.hydrosphere 3.atmosphere 4.biosphere. The four spheres show how the four main components of Planet Earth form a complete system. These main components are land, air, water, and life.The lithosphere, also known as Geosphere is made of the earth's core, the mantle, crust, ocean floor,mountains, sand, rocks, alphalt, bricks, etc.The hydrosphere is made of everything water such as oceans, rivers, lakes, rain, snow, and ice caps.hese main components are land, air, water, and life. The lithosphere, also known as Geosphere is made of the earth's core, the mantle, crust, ocean floor,mountains, sand, rocks, alphalt, bricks, etc. The hydrosphere is made of everything water such as oceans, rivers, lakes, rain, snow, and ice caps.