Answer:
Independent variable: varying amounts of light
Dependent variable: plant growth
Explanation:
The variable, which are factors that can be altered, in an experiment can either be independent or dependent. An independent variable is one in which the experimenter manipulates or controls in order to bring about an outcome. For this experiment conducted by Rachel, the independent variable is the VARYING AMOUNT OF LIGHTS.
The dependent variable is the variable that responds to changes of the independent variable. In other words, the dependent variable is the outcome of manipulating the independent variable. Hence, the dependent variable is dependent on the independent variable. For Rachel's experiment, the PLANT GROWTH is the dependent variable because it is what responds to changes in amount of light (independent variable).
Answer:
damaged cells proliferate until the wounds heals
Climate variations are averaged by using weather conditions from past years. Climate variability varies by seasons, because some seasons get colder than others, and there could be more precipitation in the atmosphere, which would then make it easier to calculate future rainfall, making people aware of storms that are coming ahead of time and allowing them to prepare for it (making storm water drains, etc.).