Freesia is trying to explain wave interference to her friend. She uses an analogy involving students pushing on a box. Which of these statements could Freesia use to explain destructive interference of waves? a. When two students push equally on opposite sides of the box, their pushes cancel each other out.

B. When two students push equally in the same direction on a box, the effect of the pushes is greater than either separate push.

C. When one student pushes up on a box and another student pushes on the side, the box moves more quickly.

D. When one student pushes down on a box and another student pushes on the side, the box is more difficult to move.

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.

im srry but ur wrong the answer is d a smooth rock, some red dirt, and an empty bird's nest.

maria has a savings account that is earning simple interest. if she started with $200 in the account and has earned a total of $8 in interest in two years, what is the rate of the account? use the formula  .