The increase in strength in soil may be seen at an age of ______

The point at which plastic limit increase and then decrease is ______

The maximum dry density of the soil can be achievement by ______

The soil stability is not so good in ______

The higher compaction will result in ______

The maximum dry density of soil lime mix is decreased by ______

The proportioning method not in use is ______

The increase in soil strength depends on ______