What happens to the current through r3 when the switch is moved to the open position b? r1 = r2 = r3. neglect the internal resistance of the battery. 1. the current through r3 decreases to twothirds its original value. 2. the current through r3 remains the same. 3. the current through r3 increases to three-halves its original value. 4. the current through r3 is reduced to one-half its original value. 5. the current through r3 increases to twice its original value?

answer;

d. are made mostly of liquid

explanation;

-the general   composition and structure planets includes; they have a thick gas and liquid layer covering a small,solid core. mostly the gases are hydrogen and helium atmosphere and layers of liquid hydrogen. for instance neptune and uranus are examples of the outer planets, they have a core covered by ice and ammonia.

-neptune's atmosphere is hydrogen and helium with a bit of methane so there is no oxygen to breath and the interior is made up of frozen water and ammonia with a rock and iron core. thus, there is no liquid water or solid surface to survive.