bruuuh isnt this the american server
DNA stores the instructions (genetic information) used to build proteins.
A dependent variable is how they are recording, measuring or keeping track of the science experiment their doing.
A independent variable is the things/types there using to compare what is the most/least affective in the experiment.
A controlled variable is something that stays the same in the experiment or a group/set used for comparison
An environmental scientist might study the effect of soil pollution on plant growth. This is true.
Hope this helped :)
