Q: What forms when oceanic crust subducts into the mantle at convergent plate boundaries? Choices: - tsunamis - glaciers - coral - volcanic mountain ranges A:
volcanic mountain ranges

Q: For a star to form, what force pulls gas and dust into the center of the nebula? Choices: - weight - centrifugal force - motion - gravity A:
gravity

Q: Although air can transfer heat rapidly by convection, it is a poor conductor and thus a good what? Choices: - magnet - absorber - transporter - insulator A:
insulator