magma, rises through cracks and erupts to form volcanoes. The answer id D. Hotspot volcanism would thus be unique because itdoes not occur at the boundaries of Earth's tectonic plates, where other volcanism occurs.
Other California of BRAZZZZILLLL
Answer:
Correct answer is Wegener had no compelling mechanism to explain what would cause the continents to move.
Explanation:
A is not correct as through his researches he presented his theory to other scientist.
B is not correct as Wegener was very educated, and was even even working as a professor at University.
C is correct that although he presented his theory, he couldn't explain totally how it happened.
D is not correct as during his lifetime his theory wasn't widely accepted. That happened 20 years after his death.
The answer is very small crystals
