What would decrease the resistance of wires carrying an electric current?

A decrease in length, or the use of a material with lower resistivity, or an increase in the cross-sectional area of the wire

Explanation:

The resistance of a wire is given by

where

is the resistivity of the material of the wire

L is the length of the wire

A is the cross-sectional area

We see that:

R is directly proportional to and L - therefore if we decrease one of these two, the resistance of the wire will decrease too

R is inversely proportional to A - therefore if the increase the cross-sectional area, the resistance of the wire will decrease

ill do it for 100, also this isnt 80 its 40

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.