Which statement best describes an igneous intrusion?
a. magma explodes to the surface and forms a smooth outer layer of rock. b. magma is exported to an open area and forms iron. c. igneous intrusions form when ice crystals splash into lava. d. magma is injected into surrounding rock forming an igneous intrusion.

Calculate the estimated density of each ball. use the formula d = m/v where d is the density, m is the mass, and v is the volume. record your calculations in table a of your student guide. given that the density of water is 1.0 g/cm3, make a prediction about whether each ball will float in water. record your prediction in table a. what is the estimated density of the table tennis ball? record your answer to the nearest hundredth