We can answer all your questions so that you have the healthiest humidity level in your home, office or classroom that will help ease your allergy and asthma symptoms. When the humidity level is too high, it can cause problems and the same can be said about a low humidity level.
What the earth layers are: RED â inner core ORANGE â outer core YELLOW â mantle BLACK â crust BLUE AND GREEN â land and water.
The core is made mostly of the metals iron and nickel. It consists of two parts --- a liquid outer core and a solid inner core. Together, the inner and outer core are 3,486 kilometers thick.