Which of the following is a common application of viscosity in everyday life?

The selection of cooking oils is directly influenced by viscosity, as it affects how the oil flows and interacts with other ingredients. For example, when cooking, different oils have varying thicknesses or resistance to flow, which can impact cooking methods and the flavors that are released during the cooking process. The viscosity of an oil can also affect its ability to coat food and contribute to the texture of a dish.

In contrast, while measuring temperature and mixing fertilizers can involve some principles of viscosity, they are not as commonly associated with the everyday application of viscosity in the same way that cooking oils are. The viscosity of a liquid is much more relevant in the context of culinary practices, making the choice of cooking oils a clearer example of viscosity in action in day-to-day scenarios.