Keyword Analysis & Research: when was silent spring written

Keyword Analysis

Keyword	CPC	PCC	Volume	Score	Length of keyword
when was silent spring written	0.66	1	4907	32	30
when	0.44	0.7	292	73	4
was	0.71	0.3	2913	55	3
silent	0.04	0.8	9786	7	6
spring	0.02	0.6	7988	49	6
written	0.89	1	5545	57	7

Keyword	CPC	PCC	Volume	Score
when was silent spring written	1.06	0.1	5886	68
silent spring was written by	0.26	0.1	2092	45
book silent spring was written by	1.74	0.7	1530	74
silent spring is written by	1.55	0.1	4476	96
why was silent spring written	0.47	1	2983	36
what year was silent spring written	0.97	0.1	9501	5
silent spring written by rachel carson 1962	1.44	0.6	8133	74
where was silent spring written	1.76	0.9	3580	86