Question

wegener’s theory of continental drift was not accepted for nearly 50 years. describe the weakness of the theory and the discovery that provided evidence to support the theory.

Explanation:

Wegener's theory lacked a mechanism for continental movement, which was a major weakness. Evidence - like paleomagnetic data showing magnetic reversals and the discovery of mid - ocean ridges with new crust formation - later supported it. These discoveries related to plate tectonics provided the necessary support.

Answer:

Weakness: Lack of a mechanism for continental movement.
Evidence - providing discovery: Paleomagnetic data and mid - ocean ridge discoveries related to plate tectonics.