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

which statements describe processes involved in the accretion of planetesimals and protoplanets? check apply. both involve the melting of solid materials in the nebula. both involve the formation of solid particles from nebular materials. both involve the work of the gravitational push on nebular materials. both involve the trapping of gases and the clumping of masses of matter. both involve the growing of gas grains with the addition of atoms and molecules.

which statements describe processes involved in the accretion of planetesimals and protoplanets? check apply. both involve the melting of solid materials in the nebula. both involve the formation of solid particles from nebular materials. both involve the work of the gravitational push on nebular materials. both involve the trapping of gases and the clumping of masses of matter. both involve the growing of gas grains with the addition of atoms and molecules.

Answer

Brief Explanations:

  1. In the accretion of planetesimals and protoplanets, solid - particle formation from nebular materials occurs as small dust and ice particles start to stick together.
  2. Gravitational pull is crucial in bringing nebular materials together, not a "gravitational push" as gravity is an attractive force.
  3. Trapping of gases and clumping of matter are important processes as more and more material accumulates.
  4. Growth of gas grains by addition of atoms and molecules is part of the accretion process. Melting of solid materials in the nebula is not a primary process in the initial accretion.

Answer:

B. Both involve the formation of solid particles from nebular materials. D. Both involve the trapping of gases and the clumping of masses of matter. E. Both involve the growing of gas grains with the addition of atoms and molecules.