NEET BIOLOGY

Detailed explanation-1: -In this investigation, the independent variable is represented by the different liquids (Option C). The independent variable is the variable that isn’t changed by the other variables during the experimental procedure.

Detailed explanation-2: -When you try to grow plants using another liquid, the molecules (or what makes up that liquid) are shaped differently from water molecules. Because of their different shape, they block the process of photosynthesis from occurring, so the seeds do not know they should grow!

Detailed explanation-3: -In a study measuring the influence of different quantities of fertilizer on plant growth, the independent variable would be the amount of fertilizer used. The dependent variable would be the growth in height or mass of the plant.

Detailed explanation-4: -In the plant experiment, the independent variable could be fertilizer-some plants will get fertilizer, others will not. The scientists change the amount of the independent variable (the fertilizer) to observe the effects on the dependent variable (plant growth).

Detailed explanation-5: -A controlled variable is a variable that doesn’t change during the experiment.