Which term names a metamorphic change in rocks over a wide area from tectonic forces in earth's crust and mantle? a. local metamorphism b. regional metamorphism c. contact metamorphism d. thermal metamorphism

indium, and thallium have three electrons i think

under a microscope, cancer cells may look very different from normal cells. they often have different sizes and some may be larger than normal while others are smaller. cancer cells are often abnormally shaped and the control centre of the cell (the nucleus) may have an abnormal appearance.

i think? ?