The region of cerebral cortex inferior to the lateral sulcus is the lobe.
a. occipital
b. temporal
c. parietal
d. frontal.

i believe it is "they are not used up by reactions" as the answer to your question, text me back if this is correct because i just learned this.

blue stars have the highest surface temp

stellar distances are usually expressed in light-years

the measure of a star's brightness is called magnitude

hope this !