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 outer core of the Earth is a liquid layer about 2,266 kilometers thick. It is made of iron and nickel. This is above the Earth's solid inner core and below the mantle. Its outer boundary is 2,890 km (1,800 mi) beneath the Earth's surface. The transition between the inner core and outer core is approximately 5,150 km beneath the Earth's surface.