Which three words best describe the composition of the inner planets? solid, smooth, giant rocky, solid, dense giant, dense, gaseous gaseous, smooth, smallWhich three words best describe the composition of the inner planets? solid, smooth, giant rocky, solid, dense giant, dense, gaseous gaseous, smooth, smallWhich three words best describe the composition of the inner planets? solid, smooth, giant rocky, solid, dense giant, dense, gaseous gaseous, smooth, smallWhich three words best describe the composition of the inner planets? solid, smooth, giant rocky, solid, dense giant, dense, gaseous gaseous, smooth, small