Which statement describes how the mantle is similar to Earth's oceanic crust?
A)It is composed mostly of basalt.
B)It consists primarily of molten rock.
C)It has varying degrees of thickness.
D)It is divided into two layers.

25) a student takes four samples of a white crystalline solid and places each in a well plate. on top of each sample, she carefully places 20 drops of clear mystery liquids a, b, c and d. her results for each well are: liquid a: the solid dissolves quickly. liquid b: the solid appears unchanged. liquid c: a brownish colored liquid is produced. liquid d: fizzing occurs and the well becomes warmer. in which well does a physical change occur?

How is the national wildlife refuge system similar to the pacific region coastal program? a. both programs are concerned with providing habitats for wildlife b. both programs are primarily concerned with preserving fish species c. both programs have set aside 150 million acres of land d. both programs are under the u. s. fish and wildlife service

Aboy jumps into a cold swimming pool and his body tempature goes down hus muscles ,blood vessels