Dry summers and wet winters
Alfred Wegener's contemporaries rejected his theory of continental drift because it challenged many established scientific theories at the time, and he lacked a compelling explanation for the cause of continental drift.
Answer:
The thick layers
Explanation:
In the Atlantic Ocean, thick layers of undisturbed sediment cover the continental margin. This region has very little volcanic or earthquake activity. In the Pacific Ocean, oceanic crust is plunging beneath continental crust.
2. An indicator shows if the top of the map is north, is the correct answer.
Other answers:
1. Lines could be considered symbols, but an indicator on a map is more of a symbol.
3. An image of a man and a woman representing the location of the restrooms maybe a better symbol, but it's not an example that helps us understand maps.
4. A title describes the map, but isn't really a symbol.
Hope this helps!
