Which of the following is required for cloud formation? O relative humidity is lower than 100 percent
O the air must be saturated
O there are no condensation nuclei in the atmosphere
O all of the above

Jenny wants to test the electrical conductivity of two substances dissolved in water. she is preparing the containers for the experiment. which factor is most important for her to control? a) volumes of the solutions b) appearance of the solutions c) temperatures of the solutions d) concentrations of the solutions