How do seismic waves help scientists determine the structures of Earth’s interior? a. Seismic waves travel through different materials at different speeds.
b. Seismic waves carry materials from Earth’s mantle across the Earth and to the surface.
c. Seismic waves activate the Earth’s magnetic field.
d. Seismic waves travel through meteorite remains at different speeds.

The biomedical technique in which a part of the brain is destroyed with electric current is known as a. electroconvulsive therapy b. prefrontal lobotomy c. bilateral cingulotomy d. tardive dyskinesia

Which heterogeneous mixture contains large particles that can settle out or can be filtered? colloid compound element suspension

Which of the following elements would you expect to have the highest ionization energy value, and why? a. chlorine (cl), because it has a low effective nuclear charge and large radius b. fluorine (f), because it has a large radius and naturally forms a negative ion c. lithium (li), because it has a small radius and naturally forms a positive ion d. neon (ne), because it has a high effective nuclear charge and small radius