Describe how the different layers of the Earth vary by density. When did the materials that make the Earth separate out by density?

The table below shows the number of foot bones in some horse fossils.horse fossil recordhorse fossil number of foot bonesp 19q 17r 24s 13ancient horses had more bones in their foot then present-day horses. the present-day horse has 11 foot bones. what is the correct order of evolution of the horse starting from the youngest fossil? a. q p r s b. s r p q c. s q p r d. r p q s

As kate is moving down the hill, what type of energy does she have? a. sound energy b. electrical energy c. light energy d. mechanical energy

An infection of the pulp and the surrounding tissue in the mouth is called