Abundance of the chemical elements in the Sun and outer planets is similar to that in the universe. Due to solar heating, the elements of Earth and the inner rocky planets of the Solar System have undergone an additional depletion of volatile hydrogen, helium, neon, nitrogen, and carbon (which volatilizes as methane). The crust, mantle, and core of the Earth show evidence of chemical segregation plus some sequestration by density. Lighter silicates of aluminum are found in the crust, with more magnesium silicate in the mantle, while metallic iron and nickel compose the core. The abundance of elements in specialized environments, such as atmospheres, or
The Lord of the Rings: The Battle for Middle-earth II game's "production values [were] sky-high", with which GamesRadar agreed, explaining, "It's not often you come across an RTS with production values this high; every part seems to be polished till it shines." When compared to its predecessor, "", "GamePro" was convinced "The Battle for Middle-earth II" had improved upon the original in several fundamental ways. GameSpot believed that "The Battle for Middle-earth II" offered better gameplay and a much broader scope that encompassed more of Middle-earth. Several critics praised the game's real-time strategy elements and graphics. IGN considered the high quality of "The Battle for Middle-earth II" proof that Electronic