Keyword Analysis & Research: difference in class and id

Keyword Analysis

Keyword	CPC	PCC	Volume	Score	Length of keyword
difference in class and id	0.22	0.9	9706	28	26
difference	1.29	0.4	9063	52	10
in	0.35	0.6	1413	75	2
class	1.91	0.8	9946	73	5
and	1.39	0.3	1993	96	3
id	0.65	0.9	9896	80	2

Keyword	CPC	PCC	Volume	Score
difference in class and id	1.57	0.6	8271	47
difference in class and id in html	0.9	0.8	3100	49
difference between class and id in css	1.36	0.8	3604	21
what is the difference between id and class	1.83	0.7	6279	100
id selector and class selector difference	1.91	0.2	3699	32