Which best explains how gravity contributes to the formation of layers in protoplanets? O Gravity attracts materials and causes compaction, which produces heat and leads to the melting, sinking, and rising of materials.
O Gravity causes materials to undergo radioactive decay, which produces heat and leads to the melting, sinking, and rising of materials.
O Gravity absorbs heat, which cools materials and causes them to sink and rise.
O Gravity releases heat into space, which cools materials and causes them to sink and rise.

it's a secular holiday. it is and was a custom developed to recognize the ending of a time and a wish for a good future. the kind of kiss you exchange, if you are single, is intended to predict what kind of year you will have in the coming year.

it is saying good bye to the last year with all its ups and downs, and hello to the new year, with all its hopes and dreams.

1) the answer is b

senators serve a six-year term; representatives serve a two-year term, making them more responsive to (and responsible for) voter confidence.

2) the answer is d

to serve as president, one must:   -be a natural-born u.s. citizen of the united states;   be at least thirty-five years old;   be a resident in the united states for at least fourteen years.

3) the answer is a

ella,because it is constitutionally eligible

4) the answer is c: the u.s president

this is not a question its simply asking you to read and write a few sentences and   the question on the bottom its fairly easy, you can do this!