Answer:
GMOs are the subject of strong hostility in France and in other European countries, particularly because their risk/benefit balance is perceived as very unfavorable and because the general public often lacks confidence in their promoters and the regulatory process.
Explanation:
Sedimentary rock layer is the most complex
I would say that the resource you could use to find the meaning of <em>ambiguous </em>is the dictionary.
An almanac is an annual publication about weather, crops, etc.
A thesaurus is a dictionary of synonyms.
An encyclopedia is self-explanatory.
