Afriend of yours who has not taken astronomy sees a meteor shower (she calls it a bunch of shooting stars). the next day she confides in you that she was concerned that the stars in the big dipper (her favorite star pattern) might be the next ones to go. how would you put her mind at ease?

freezing

deposition

condensation

explanation;

melting also called fusion is the process where solid becomes liquid, sublimation is the process where solid becomes gaseous without first changing to liquid, deposition involves change from gaseous to solid state, freezing involves change from liquid to solid, boiling or evaporation involves change of liquid to gaseous state, while condensation is the change from gaseous state to liquid state.

endothermic reactions involves absorption of heat from the surroundings or the environment while exothermic reactions involves loss of heat energy to the surroundings.

in this case, sublimation, evaporation and melting are endothermic reactions (gain energy from the environment) while, freezing, deposition and condensation are exothermic (loss of energy to the surroundings) reactions.

i wanna say it’s between b and d, leaning more towards b.