What statement about Earth's layers is true?

Why is positive feedback more likely than negative feedback to disturb homeostasis? What is the meaning and importance of sympathetic tone? What is an individual who has a recessive disease causing allele? What are the seven planets and how close are they to the sun? How many square feet does 1 ton of asphalt cover at 2 inches? Why what is a weather watch and weather warning and why are they important? How do you convert mm Hg to 1 ATM? Protein contained in red blood cells that carries oxygen to the body? How does the size of the blood cell compare to Dust Mites and to the e coli bacteria? How did johnnyh feel when he ran into a burning building? What is the name of the compound with the formula Ca(ClO4)2? Is nails a metal nonmetal or a metalloid? What happens when you put rocks in a motorcycle exhaust? What happened with these three plants? What represents a characteristic of an ecosystem that is not likely to sustain itself? Can you lift an ice cube with a string and sugar? What can be single or multi-celled and have organization within their structure? What would happen to soil if all plants were removed? What volume of 0.150 M KOH is needed to react completely with 14.2 mL of 0.270 M H2SO4? When amino acids are degraded for energy the amine group is converted to by the?