a block of wood has mass 4 kg, what is the density of the wood if the mass of water is 3kg and its volume is half that of the block of wood​

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.

answer: question1

1,000 tons

question2

3: 8

question 3

store d

step-by-step explanation:

.) the observation by semmelweis that more mothers died of childbed fever when their doctors also worked in the morgue

the current is 0.6

voltage ÷ resistance = current

so 12 ÷ 20 = 0.6