What process does the figure show occurring in the mantle?
A- hot rock expands and becomes less dense rising toward the surface.
B- hot rock expands and becomes more dense rising toward the surface.
C- hot rock becomes less dense and moves toward the outer core.
D- hot rock becomes more dense and moves toward the lithosphere.

Agood hypothesis includes which of the following? a: prediction b: data c: uncertainty d: conclusion

Achemistry student needs to standardize a fresh solution of sodium hydroxide. he carefully weighs out of oxalic acid , a diprotic acid that can be purchased inexpensively in high purity, and dissolves it in of distilled water. the student then titrates the oxalic acid solution with his sodium hydroxide solution. when the titration reaches the equivalence point, the student finds he has used of sodium hydroxide solution. calculate the molarity of the student's sodium hydroxide solution. be sure your answer has the correct number of significant digits.

No copying 15 pts how does a free-body diagram tell you about the net force on an object?