Frequent earthquakes in an area may indicate.............?

Question

a. tectonic plate boundaries.

b. sea-floor spreading.

c. mantle convection.

d. reversed polarity.

Answer 1

A is correct.

Answer 2

a. tectonic plate boundaries

Earthquakes show that there is a plate boundary there as earthquakes are caused by the plate boundaries suddenly releasing a lot of pressure, which has built up.

explanation:

well it is NOT b (well it could be but we cannot be sure of this)

sea floor spreading would cause the formation of a constructive plate boundary, which would cause volcanic eruptions and earthquakes. Although this answer could be correct, it is not necessarily

Its not c. There is mantle convection pretty much everywhere, just under the layer of crust. So technically the answer could be c as well but then again technicalities are stupid

Its not d. Earthquakes cannot in anyway suggest reversed polarity. Reversed polarity rock occurs in constructive plate margins. They can only be shown by measurements of the magnetic pattern on the ocean floors.