Question

An experiment is performed to test the effect of three different types of water on the growth of a plant. The test is done by using tap water, distilled water, and carbonated water.

Answer 1

This experiment is testing the effect of types of water on growth of a plant.

Hence, the independent variable is the water type

;which having three levels.
1. Tap water
2. Distilled water
3. Carbonated water

The dependent variable is the growth of plant which can either be measured through the height.