Final answer:
The most dangerous time when using a pesticide is when mixing and pouring the chemical into the tank.
Step-by-step explanation:
The correct answer is A. True.
The most dangerous time when using a pesticide is indeed when mixing and pouring the chemical into the tank. This is because during this process, there is a higher risk of direct exposure to the concentrated pesticide, which can be harmful to human health.
For example, when mixing pesticides, inhalation of pesticide fumes can occur, leading to respiratory issues. Additionally, accidental spills or contact with the skin or eyes can cause irritation or even chemical burns. Therefore, it is crucial to follow safety precautions and use protective equipment when handling pesticides.