Question

to support his hypothesis of continental drift, alfred wegener used the following: ancient climatic evidence evidence from rock formations data on ancient reptiles and ferns all of the above one factor that determines the strength of an earthquake is the depth of its epicenter epicentral distance magnitude focus

Explanation:

• For the first question:
• Alfred Wegener used multiple types of evidence for continental drift. Ancient climatic evidence (e.g., glacial deposits in regions that are now tropical). Evidence from rock formations (matching rock types across different continents). Data on ancient reptiles and ferns (similar fossil distributions across continents). So all of these are valid.
• For the second question:
• The focus is the point within the Earth where an earthquake rupture starts. The depth of the focus affects the strength of an earthquake. The epicenter is the point on the Earth's surface directly above the focus. Epicentral distance is the distance from a point on the Earth's surface to the epicenter. Magnitude is a measure of the size of an earthquake (e.g., Richter scale), not a factor determining strength based on depth.

Answer:

• First question: all of the above
• Second question: focus