Question

Which statement best describes the usefulness of a model to investigate molecules at the
microscopic level? (1 point)
All models are useful.
A model’s usefulness depends on the accuracy of its predictions.
A model’s usefulness depends on whether direct observations of phenomena can be made.
Models are not useful at all.

Answer 1

A model’s usefulness depends on the accuracy of its predictions.

Explanation: A model is valuable if it reliably explains and predicts observed behavior at the microscopic level. Even imperfect models can be useful, but their usefulness is judged by how well their predictions match experimental or observational evidence.