Each time a barrel of oil is spilled onto the ocean's surface it creates an oil slick approximately 1.0 nanometer in thickness. how large an area will be covered by the oil slick created by spilling one barrel of oil? (1 barrel-115.6 liters; 1000 liters= 1m^3)^4
compare this area to the area of a soccer fiels that is 100 meters × 173 meters. how many times could you fit a regulation soccer field inside of the oil slick created by one barrel of oil?
guys !

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.