Final answer:
The detection of toxic chemicals is most effectively carried out through chemical analysis, a method using specialized laboratory techniques. Taste and smell are chemical senses, but they are not reliable for detecting toxic substances. Therefore, the correct option is c) Chemical analysis.
Step-by-step explanation:
The detection of toxic chemicals most accurately depends on chemical analysis. This scientific method employs various techniques to identify and quantify chemical substances, which may include advanced equipment and laboratory procedures, such as chromatography, spectroscopy, and mass spectrometry.
While taste (gustation) and smell (olfaction) are indeed chemical senses that detect chemicals through receptors in the body and send nerve impulses to the brain, these senses are not reliable for detecting toxic chemicals, as they can be deceived, overwhelmed, or even damaged by certain substances.
Subsequently, sight and touch are useful for observation but do not have the specificity to chemically identify toxins. Auditory signals are unrelated to chemical detection altogether.
Thus, to accurately identify and assess the presence of toxic chemicals, chemical analysis is the most appropriate and effective method.