Analysis of Toxic Contaminants in Agriculture: Educational Strategies to Avoid Their Influence on Food

Table 1. Questions asked to students before teaching (number ofstudents questioned 37, number of questions 14)

Percentage		Numeric
PRE-STUDY QUESTIONS	Indications	Answers		Answers
YEAH	NO	YEAH	NO
Should a well-preserved soil have an A horizon rich in plant remains?	yes/no	81	19	30	7
Do you think that a well-preserved soil should have a plant cover or not?	yes/no	65	35	24	13
Do you think that there is competition for water between the vegetation cover and the species we cultivate?	yes/no	100	0	37	0
Do you think that this competition for water would depend on the type of vegetation of our crop or not?	yes/no	0	100	0	37
Do you think that if there is no plant cover, insects disappear?	yes/no	73	27	27	10
Do you consider convenient to eliminate the vegetation of a crop with herbicides?	yes/no	73	27	27	10
Do you think that herbicides are harmful to health?	yes/no	95	5	35	2
Could herbicides get into groundwater?	yes/no	81	19	30	7
Could herbicides get into the vegetables or fruits we eat?	yes/no	95	5	35	2
Do you know of any disease caused by food contamination?	yes/no	0	100	0	37
Do you have knowledge of how agrochemicals should be used and in what concentrations?	yes/no	0	100	0	37
Do you think that you have been given enough knowledge about agriculture and sustainability from school?	yes/no	0	100	0	37
Do you consider sustainability a relevant topic for you?	yes/no	86	14	32	5
Would you propose to include their study in initial levels in education?	yes/no	86	14	32	5