So yea i found this.

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.

Adding more tributaries to a local river basin can have what effect?

Which is abiotic? a. tree sap b. insect c. sunlight d. wood table