The answer is D.
With mechanical advantage, less work is put in for a better result.
It can apply force in a shorter distance, but increase distance itself.
The would have to be weather
In the experiment with plants being grown at different temperatures to see how it will affect a plant's growth, the control group is the plant being grown at room temperature. The experimental group includes the three plants being grown at temperatures greater than room temperature.
The answer should be B Convection
B. chloroplast carrries out photo synthesis
