MCOLES State Licensing Practice Exam

Which packaging method is recommended for soil samples?

1. Glass or Plastic Container

2. Cardboard or Styrofoam Container

3. Breathable Paper Bag

4. Metal Container

The correct answer is: Glass or Plastic Container

The recommended packaging method for soil samples involves using a glass or plastic container. This choice ensures that the samples are securely sealed and protected from contamination, which is crucial for maintaining the integrity of the soil composition during transportation and storage. Glass containers provide an inert environment, preventing any chemical reactions or leaching that could alter the soil sample. Plastic containers are also suitable, especially when they are made of high-quality, non-reactive materials that will not interact with the chemicals present in the soil. In contrast, other packaging methods may introduce contaminants or allow for moisture loss, which can significantly affect the accuracy of subsequent analyses. Cardboard and Styrofoam, while useful for certain items, are not suitable for soil samples due to their porous nature and potential for absorbing moisture and other materials. Breathable paper bags also do not offer the necessary protection against external influences such as moisture and contaminants. Metal containers, while sturdy, may react with certain elements in the soil, which could compromise the sample's accuracy. Therefore, glass or plastic containers are the most reliable options for preserving the quality of soil samples.