A student is studying the effect of fertilizer on fruit growth he uses 6 tomato plants placing each in a garden where they get equal amounts of sun and water. One plant is given no fertilizer while the other 5 plants are given 5, 10, 15, 20, and 25 grams of dissolved fertilizer each day for 3 weeks at the end of the experiment the tomato fruits are weighed
What is the dependent variable in this experiment
Fruit weight
Amount of fertilizer
Amount of water
Sun exposure