according to wegeners hypothesis of continental drift ?

A. Earths surface
B. The continents
C. Earth is slowly cooling and shrinking
D. The continents joined

I don't understand the first two answers.

You didn't even finish the answer choices..?

His theory was that a bunch of the continents were once joined together- a supercontinent called "Pangea"

According to Wegener's hypothesis of continental drift, the correct answer would be:

D. The continents joined.

To understand Wegener's hypothesis, one would need to know about the concept of continental drift. Wegener proposed that the Earth's continents were once connected in a single supercontinent called Pangaea. Over time, these continents slowly drifted apart to their present positions.

To learn more about this hypothesis, one could start by studying the evidence that Wegener presented to support his idea. Some of the main pieces of evidence include the matching coastline shapes of different continents, similar rock formations and mountain ranges across different continents, and the existence of identical fossils on different continents. This evidence suggests that the continents were once connected and have since moved away from each other.

To further explore the topic, one could read scientific papers or books on plate tectonics, which is the modern theory that provides a more detailed explanation for the movement of Earth's continents. This theory builds upon Wegener's work and includes the understanding of the Earth's lithosphere being divided into large moving pieces called tectonic plates. These plates move due to heat convection currents in the Earth's mantle.

By studying the evidence and the scientific research on continental drift and plate tectonics, one can gain a better understanding of Wegener's hypothesis and the concept of the continents joining and then drifting apart.