They all have diverse plant life with the occasion of animals sometimes
Answer:
One of the physical characteristics about a gas is that it is not a solid and it is an invisible gas
Explanation:
12. One of the physical characteristics about a gas
Constants never change.
Controls typically don't change or they are done by standard means
(like in an experiment where you water plants with sodas, the plant you use water with is the control)
Dependent variables are the outcome of the experiment. This is the result of changing something.
Independent variables are what you are testing. A independent variable is something that is intentionally altered.
easy way to remember it is that dependent variables depend on what other variables are. so you cant change a dependent variable, but you can change the other variables.
