which statements describe processes involved in the accretion of planetesimals and protoplanets? check all…

which statements describe processes involved in the accretion of planetesimals and protoplanets? check all that apply.\nboth involve the melting of solid materials in the nebula.\nboth involve the formation of solid particles from nebular materials.\nboth involve the work of the gravitational push on nebular materials.\nboth involve the trapping of gases and the clumping of masses of matter.\nboth involve the growing of gas grains with the addition of atoms and molecules.
Answer
Answer:
- Both involve the formation of solid particles from nebular materials.
- Both involve the trapping of gases and the clumping of masses of matter.
Brief Explanations:
In planetesimal and protoplanet accretion, solid - particle formation from nebular materials is a key step. Also, the trapping of gases and clumping of matter are important processes in their growth. Melting of solids is not a primary process in the initial accretion. Gravitational force is a pull, not a push. Growth of gas grains by adding atoms/molecules is not a main process in accretion of solid - based planetesimals and protoplanets.