Agricultural chemicals such as 2,4-D (2,4-dichlorophenoxyacetic acid) may be ingested by routes other than food. Compare the CDIs for ingestion of soil contaminated with 10 mg/kg of 2,4-D by a 3-year-old child and an adult. Assume a 1-year averaging time. Also, assume that the fraction of 2,4-D ingested is 0.10.