Question

1. what was alfred wegeners significant contribution to the field of earth science?

he discovered the first dinosaur fossils
he invented the first compass
he proposed the theory of continental drift
he developed the theory of evolution

Explanation:

Alfred Wegener is a key figure in Earth science known for his groundbreaking hypothesis that the Earth's continents were once a single supercontinent (Pangaea) and have drifted apart over time, which is the continental drift theory. The other options are incorrect: the first dinosaur fossils were discovered before Wegener, the compass was invented much earlier in history, and the theory of evolution is associated with Charles Darwin.

Answer:

He proposed the theory of continental drift