Keyword Analysis & Research: when were landfills invented

Keyword Analysis

Keyword	CPC	PCC	Volume	Score	Length of keyword
when were landfills invented	0.08	0.2	8452	35	28
when	1.23	0.5	8930	100	4
were	0.71	0.1	9112	4	4
landfills	0.94	0.7	625	80	9
invented	0.04	0.3	9000	84	8

Keyword	CPC	PCC	Volume	Score
when were landfills invented	1.52	0.2	7135	81
when was the first landfill	0.94	0.7	5115	10
history of landfills in america	1.2	0.5	9413	75
how did landfill start	1.98	0.7	7256	93
how long have landfills been around	1.27	0.8	395	82
when did landfills become popular	0.07	0.7	4648	74
history of landfill sites	0.1	0.5	7072	24
history of landfill engineering	1.21	0.1	9729	70
history of landfill management	1.94	1	8428	68
history of landfill gas	0.6	0.5	7879	58
history of landfill regulations	1.09	0.9	7426	44
history of landfill mining	1.88	0.2	4545	49
history of landfill diversion	1.89	0.8	3465	13
history of landfill tax	0.57	0.1	5115	13
when did municipal landfills open	0.12	0.8	6088	81
at the beginning of 2010 a landfill	1.59	0.8	6809	64
modern landfills are designed with	0.34	0.1	8237	12
history of landfill leachate	0.09	0.7	936	19
why do landfills exist	1.82	0.8	1709	78
how landfills are made	0.72	0.8	7060	53
historic landfill sites uk	1.84	0.8	8185	77

(Choose at least 2 and not exceed 5 keywords)

Choose at least 2 and not exceed 5 keywords