What happens when tectonic plates move away from each other? a. molten matter cools and sinks towards the core b. lava travels way from the crust and forms the mantle c. molten matter seeps through crust and forms new land d. lava seeps into ground and cracks the ground

Gravity is pulling an object into the sun. the closer the object gets to the sun, the greater the gravitational force that acts on the object, increasing its acceleration. a line graph plotting the speed of the object against time would have which shape? a: straight line of positive slope b: curved line that slopes upward c: curved line that slopes downward d: straight line of negative slope