just because they are out of the sight they should not be out of mind
(a) justify the statement
(b) what is the word 'they' denote here? Name major soil pollutants
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The soil contamination can occur due to the presence of chemicals such as pesticides, herbicides, ammonia, petroleum hydrocarbons, lead, nitrate, mercury, naphthalene, etc in an excess amount. The primary cause of soil pollution is a lack of awareness in general people.
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