Question

1. radiometric dating is crucial for: determining exact species characteristics establishing chronological relationships between fossil formations predicting future evolutionary trends calculating precise population densities

Explanation:

Radiometric dating measures the decay of radioactive isotopes in rocks and fossils to find their age. This helps in establishing the chronological sequence of fossil - bearing rock layers and thus the chronological relationships between fossil formations. It is not used for determining species characteristics, predicting future evolution, or calculating population densities.

Answer:

Establishing chronological relationships between fossil formations