NEET BIOLOGY

Detailed explanation-1: -The independent variable is plant height and the dependent variable is soil. 3. To test how different types of fertilizer affect plant height, you will add different brands of fertilizer to each plant and measure how tall they grow.

Detailed explanation-2: -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-3: -In this experiment, the addition of fertilizer is the independent variable manipulated by the scientist. Plant height is the dependent variable that responds to the change in the independent variable. Each plant is exposed to an equal amount of sunlight, so sunlight is the control variable.

Detailed explanation-4: -Your grass will get the same nutrients whether you apply a liquid or granular fertilizer. And plants can’t tell the difference between nutrients supplied by granular and liquid fertilizers.

Detailed explanation-5: -When experimenting with the growth of a plant, a scientist uses three (of the same type of) plants, two different fertilizers, equal light, and equal water. What type of variable is the fertilizer? Independent.