The process of obtaining increased density of soil in a fill by reduction of its pore space by the expulsion of air, is known as
1] soil exploration
2] soil stabilisation
3] soil compaction
4] consolidation
				
			1] soil exploration
2] soil stabilisation
3] soil compaction
4] consolidation
 
	 
 
		
 
 
		 
 
		 
 
		