Question

Frequent earthquakes in an area may indicate:

a) Mantle convection
b) Tectonic plate boundaries
c) Sea-floor spreading
d) Reversed polarity

Answer 1

Frequent earthquakes in an area may indicate tectonic plate boundaries. Tectonic plate boundaries are often associated with earthquakes and volcanic activity.

Step-by-step explanation:

Frequent earthquakes in an area may indicate tectonic plate boundaries. Tectonic plate boundaries are often associated with earthquakes and volcanic activity. Divergent plate boundaries are characterized by shallow earthquakes and some volcanism, while convergent boundaries have a range of earthquake depths from shallow to deep. Transform boundaries typically have shallow earthquakes and no volcanoes. Therefore, frequent earthquakes in an area can be a sign of tectonic plate boundaries.