Final answer:
Option a) 'There were traces of land bridges connecting separate continents' was not one of the pieces of evidence used by Alfred Wegener to support his Theory of Continental Drift.
Step-by-step explanation:
The question concerns the evidence supporting the Theory of Continental Drift, which was proposed by Alfred Wegener. Among the provided options, the one that was not used by Wegener to support his hypothesis is a) There were traces of land bridges connecting separate continents. Alfred Wegener's evidence for continental drift included: the jigsaw puzzle fit of continents, similar fossils on different continents, matching geological features such as mountain ranges, and paleoclimate evidence suggesting past connections between the continents.
It's important to note that Wegener's Theory of Continental Drift faced significant skepticism from his peers primarily because he lacked a mechanism to explain how continents moved. This understanding of the mechanism, later known as plate tectonics, developed with further research in diverse fields such as geology, oceanography, and geophysics in the decades after Wegener's proposal.
Thus, the final answer, in two-line explanation: Option a) is incorrect as land bridges were not part of Wegener's original evidence for continental drift. The other options (b, c, and d) accurately reflect evidence that Wegener used in his hypothesis.