If we don't sleep for a long times, what effect will happen in our brain?

if we don't sleep for a long times, it makes our brains cells difficult to communicate effectively which can lead to temporary mental lapses.

i think its y= -4x-14

igneous rocks which formed by the crystallization of magma at the surface of the earth called extrusive rocks. they are characterized by fine-grained textures because the rapid cooling at or near the surface did not provide enough time for large crystals to grow.