What is another expression for the speed of an object

Blank is a rock with a find dark texture that makes up the oceanic crust

What are some of the immune functions of the lymphatic system? a. cleaning red blood cells from the blood and creating lymph fluids b.transporting lymph to the tissues and creating lymph fluids c.removing infectious agents and making white blood cells d.making red blood cells and removing infectious agents

Can someone give me the answer to this question? you so much