Which statement is true according to plate tectonics theory?

Which statement is TRUE according to plate tectonic theory? Plates of rigid lithosphere lie on top of the weak asthenosphere. Seafloor spreading occurs at this type of plate boundary. According to plate tectonic theory, convergence between two plates of ocean lithosphere created these volcanoes.

Explanation:

1."lessen the worth of ."

2."increase the worth of."

3." beyond the worth of."

4."against the worth of ."