Scientists have discovered that the inner core of Earth is a solid while the outer core is a liquid. What is the cause of this observation?

c. The inner core has a lower temperature and higher pressure than the outer core

Explanation:

sorry if its wrong but i know the right answer isnt

" The outer core has a higher temperature and more pressure than the inner core" (PS, I took the test )

image result for how many calories of energy will 20 grams of carbohydrates provide in one gram provides 4 calories

consuming the right balance of protein, carbohydrates and fat can you maintain a healthy weight and optimize your energy levels. protein and carbohydrates both contain 4 calories per gram, while fat provides 9 calories per gram.