What is it called when a moving force wears object down a material?

Aplane cuts a pyramid as shown in the diagram. what is the shape of the cross section? a. a hexagon b. a pentagon c. a square d. a triangle

In recent times, what parts of texas are most likely to gain to representatives based on redistricting in recent years

Which statement is an accurate description of life in mongolia in recent years? the majority of the population now lives in cities. after a brief period of democracy, communists regained control of the government. subsistence farming remains the primary economic activity in the country. relations between mongolia and china are now tense. -gradpoint