oxygen cycle and ozone layer

Keyword Analysis

Keyword	CPC	PCC	Volume	Score	Length of keyword
oxygen cycle and ozone layer	1.09	0.9	2160	100	28
oxygen	0.64	0.5	8639	73	6
cycle	0.15	0.6	9321	58	5
and	1.12	0.5	2627	33	3
ozone	1.79	0.6	1459	73	5
layer	0.83	0.7	7550	73	5

Keyword	CPC	PCC	Volume	Score
oxygen cycle and ozone layer	0.18	1	4372	26
oxygen present in the ozone layer	0.47	0.5	2367	13
ozone layer and carbon dioxide	1.7	0.2	1637	96
oxygen decrease effect ozone layer	1.27	0.6	225	68
ozone layer over time	0.94	0.6	4241	27
how is the ozone layer doing	0.46	0.3	381	4
how's the ozone layer doing	0.84	0.9	9455	39
ozone layer through the years	1.82	0.4	6324	1
is there an ozone cycle	1.47	0.8	2288	77
how ozone layer works	1.13	0.1	1027	65
introduction on ozone layer	0.7	0.6	6671	63
explain the formation of ozone layer	1.15	0.3	9112	10
carbon dioxide ozone layer	1.34	0.6	2354	75
articles on the ozone layer	1.45	0.3	9361	55
how is the ozone layer today	1.46	0.1	1974	43
basic ozone layer science	1.86	0.2	2643	14
explain the role of the ozone layer	0.42	1	4695	19