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 is liquid, the inner core is solid. That's the way Earth has been depicted in textbooks for the past 66 years. But the work of Dziewonski and graduate student Miaki Ishii shows that this picture doesn't get to the bottom of things.