Which statements describe processes involved in the accretion of planetesimals and protoplanets? Check all tha 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.​

kelp are large brown algae that live in cool, relatively shallow waters close to the shore. they grow in dense groupings much like a forest on land. these underwater towers of kelp provide food and shelter for thousands of fish, invertebrates, and marine mammal species.

e) all of the above

before, trains worked using the steam engine. thus, it uses heat so it is crucial to apply heat balance. the steam engine absorbs energy during the stage of boiling water. so, this is the endothermic reaction. when the steam is used to work the piston, it has to release this energy through running the train. the excess energy is released as an exhaust to the chimney. this is the exothermic process because it releases energy to the surroundings.