A student needs to prepare 3.0 liters 0.20 M NaOH solution from a 5.0 M NaOH stock solution. How many milliliter of stock solution should the student use? (1 point)
A) 100mL
B) 120mL
C) 150mL
D) 160mL

why is arctic sea ice important? arctic sea ice keeps the polar regions cool and moderate global climate. sea ice has a bright surface; 80 percent of the sunlight that strikes it is reflected back into space. as sea ice melts in the summer, it exposes the dark ocean surface.

it should have an internal chamber and two thermometers sticking out of the top. the internal chamber will also be closed off from the outside.

one negative thing it that it can kill water animals. another negative thing is it can cause the destruction of ecosystem. one way water pollution can be reduced is to conserve energy.