why is oil shale solid

Keyword Analysis

Keyword	CPC	PCC	Volume	Score	Length of keyword
why is oil shale solid	0.37	0.1	411	72	22
why	1.63	0.7	4951	94	3
is	1.38	0.2	3094	12	2
oil	0.03	0.4	6574	37	3
shale	0.98	0.7	10	92	5
solid	0.68	0.5	7654	29	5

Keyword	CPC	PCC	Volume	Score
why is oil shale solid	0.14	0.2	4586	88
is oil shale solid	1	0.3	6671	38
how is shale oil formed	0.64	0.7	8027	5
how does oil shale form	1.03	0.8	6052	31
what is an oil shale	0.95	0.3	798	44
shale oil vs oil shale	0.75	0.9	8272	32
difference between oil shale and shale oil	0.02	0.5	8570	10
does shale have oil	1.77	0.6	8612	89
how is oil released from oil shale	1.59	0.3	6986	22
how is shale oil produced	1.26	0.7	7287	4
difference between shale oil and crude oil	0.64	0.6	5332	66
what is shale oil and gas	0.79	0.2	3540	77
shale oil vs crude oil	1.19	0.2	4626	13
definition of shale oil	0.5	0.8	5737	10
shale gas and shale oil	0.44	0.6	2149	80
shale oil production processes	1.89	0.2	4536	2
how does shale form	1.13	0.5	9532	27