if pechay plants are grown in nitrogen rich soils then it will develop larger haves that those planted in nitrogen-poor soils becaus nitrogen stimulates vegetative growth. 1.Independent variables 2.Dependent variables 3.controlled variables answer
Answer (1)
1. Independent Variable: - Nitrogen levels in the soil. This is what the experimenter is manipulating. They are creating two groups: one with high nitrogen and one with low nitrogen. 2. Dependent Variable: - Size of the pechay leaves. This is what the experimenter is measuring to see if it changes based on the nitrogen levels. 3. Controlled Variables: - Type of pechay seeds: Using the same variety of pechay seeds ensures that any differences in leaf size are due to nitrogen, not genetic differences.- Amount of water: Giving both groups the same amount of water ensures that water availability isn't a factor influencing leaf size.- Sunlight exposure: Providing equal sunlight to both groups ensures that differences in growth aren't due to varying light conditions.- Soil type (except for nitrogen): Using the same type of soil (aside from the nitrogen content) ensures that other soil nutrients aren't influencing the results.
