Ineed the question is: explain how scientists believe the earths for layers were formed. i need on this the first one to answer ill make there answer brainliest. (:

When the Earth cooled from being hot, all the iron and nickel was concentrated inside the Earth forming the inner two layers, inner solid core and outer liquid core. Then with the passage of time the Earth solidified gradually and the mantle solidified and now at this stage the Earth's crust, the outer most part of the Earth, looks like it's final product (the way it does now).  

A . She wants to get away from the house and go home.

Explanation:

The narrator is a sick woman recovering from emotional stress after child-birth. She is accompanied by her husband, John a doctor, for the next 3 months in a big, "beautiful" but strange house. She stays most of the day up in a room - which she does not like a bit -  in what used to be a nursery space and is confronted by many unpleasant things about the room.

Here are some points that buttress this option:

Her husband´s caring but "suffocating attitude" towards her health only increases her state of despair for he said she must get well within the 3 months of stay. He makes her take all sorts of vitamins, medication and lot of fresh air and admonishes her constant tired state,  and "fancy-full" ideas. She writes without his knowledge because he rather she does not so to get back her strength.The state of preservation of the yellow wallpaper, the furniture are some of her principal dislikes and source of despair. She has asked John to change the wallpaper, the furniture however, he does not see much sense in it since they will be there for a short while.She has also asked to go visit some cousins of hers to which he is against.