Keyword Analysis & Research: who invented poison gas in ww1

Keyword Analysis

Keyword	CPC	PCC	Volume	Score	Length of keyword
who invented poison gas in ww1	1.22	0.3	5364	73	30
who	0.68	0.4	1611	49	3
invented	0.41	0.9	8889	76	8
poison	1.87	1	6164	76	6
gas	0.09	0.8	3940	4	3
in	1.39	0.7	8342	37	2
ww1	0.95	1	5708	85	3

Keyword	CPC	PCC	Volume	Score
who invented poison gas in ww1	1.35	0.4	4847	56
when was poison gas invented ww1	0.47	0.4	8786	81
who used poison gas in ww1	1.24	0.5	8149	33
how was poison gas created in ww1	1.07	1	8580	37
who invented the poison gas	1.8	0.3	4169	68
how was poison gas made in ww1	0.71	1	8916	1
first use of poison gas in wwi	0.18	0.7	3894	97
when was the poison gas invented	1.18	0.2	8723	98
poison gas in world war 1	0.67	0.8	1723	64
who first used poison gas	0.33	1	7335	70