What is the purpose of a rain gauge? a. to measure the amount of rainfall b. to predict how much rain is going to fall c. to predict whether or not it is going to rain d. to measure the temperature of the rain

Prior knowledge can be gained from personal experience and a) forming well-developed hypotheses. b) listening to opinions of other people on a topic. c) researching previous experiments and results on a topic. eliminate d) no other methods. it can only be gained by personal experience.