Researchers have found volatile organic contaminants in high concentrations in large fishes found in food webs of lakes that are very remote (far north Canada). These compounds are agricultural pesticides that are only used far south, thousands of miles away. Additionally, these lakes have relatively high numbers of links in the trophic food web (a high number of trophic levels). What are some possible explanations for these high concentrations? Biodilution leads to the higher concentrations Distillation in the atmosphere allows the contaminants to be transported very far away from their source Biomagnification is increased with more trophic levels in the food web Two of the answers are correct All of the answers are correct .