14 Standard 8.ESS2.4 How are faults that occur in the middle of tectonic plates different from plate boundaries?
A Plate boundaries are sites for earthquakes but faults are not.
B Plate boundaries occur between tectonic plates while faults can occur
anywhere.
C Faults cover larger areas than the intersections between plates.
D Faults are the sites of volcanoes while the intersections between plates are not.

answer: the blood-brain barrier is a layer of specialized membranes and cell processes designed to keep undesirable substances from passing from the bloodstream into the precious tissues of the brain. while the blood-brain barrier does keep most bad things out of the central nervous system, it is not impermeable.

explanation:

true is the

sodium i think the chemical element of atomic number 11, a soft silver-white reactive metal of the alkali metal group.