Keyword Analysis & Research: why were tanks used in ww1

Keyword Analysis

Keyword	CPC	PCC	Volume	Score	Length of keyword
why were tanks used in ww1	0.99	0.8	8984	37	26
why	0.86	0.4	5882	51	3
were	0.38	0.6	3139	39	4
tanks	0.69	0.8	6436	58	5
used	1.92	0.2	7957	68	4
in	1.48	0.5	1490	52	2
ww1	0.72	0.4	6355	78	3

Keyword	CPC	PCC	Volume	Score
why were tanks used in ww1	2	0.8	2660	97
when were tanks used in ww1	0.4	0.7	9289	77
why were tanks used in ww2	1.5	0.8	6257	33
why were tanks used in wwi	1.79	0.3	4836	61
how were tanks used in ww1	0.63	1	2394	91
when were tanks first used in ww1	1.14	0.1	1328	53
what were tanks used for in ww1	0.16	1	9094	1
what battle were tanks first used in ww1	0.34	0.5	2746	7
how many tanks were used in ww1	1.03	1	679	1