What are some advantages of solar energy? What are some disadvantages?

It is a Renewable Energy Source. It's Low Maintenance. It also saves you money in the future.

Disadvantage. Solar Energy Storage Is Expensive,Uses a Lot of Space. The initial cost of purchasing a solar system is fairly high

Explanation:

advantages

disadvantages

hope that helps :))

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.