To be effective, dichotomous key choices must be parallel?

What does the chemical formula c3h6o2 tell about a molecule of the compound it represents

For this question look at the hydropic diagram water that is heated by the sun evaporates. select the number that represents it.

Ascience research group is testing a new type of plant food. one trial is conducted in a controlled experiment. the data from the trial show that the plant that received the new food grew faster than the control plant. the group announces that the new plant food makes plants grow faster. what is the main weakness in this scientific claim?