Pwaves can travel through earth's outer core, but s waves cannot, because of this, scientists know

An example of what is geese flying south for the

Is it considered muscle s ennervation if sympathetic fibers innervate the vessels within the muscle?

Chalk is an ionic compound. which is a property of all ionic compounds that makes chalkboard? particularly useful for writing on a a high melting point hardness and brittleness inability to dissolve in water a multicolored appearance