What must happen to igneous rock before it can change into sedimentary rock? a. it must be broken down into sediment b. it must melt and become magma c. it’s minerals must be dissolved in water d. it must be exposed to high pressure and temperature

And give a detailed description! scientist observes the boundary between two tectonic plates for a decade and finds that no new volcanoes have formed over the course of her investigation. does this result support the theory of plate tectonics? why or why not?

Which is not a type of symmetry? a. asymmetryb. radial symmetryc. bilateral symmetryd. lateral symmetry

What was darwins theory of common decent