if pechay plants are grown in nitrogen-rich soils then it will develop larger leaves than those planted in nitrogen-poor soils because nitrogen stimulates vegetative growth? types of variables
Answer (1)
Answer:This statement describes a scientific experiment. Let's identify the types of variables involved: - Independent Variable: The amount of nitrogen in the soil (nitrogen-rich vs. nitrogen-poor). This is the variable that the researcher manipulates or changes.- Dependent Variable: The size of the pechay leaves. This is the variable that is measured and is expected to change in response to the independent variable.- Controlled Variables: These are factors that are kept constant to ensure a fair test. Examples include:- Amount of water given to each plant- Amount of sunlight each plant receives- Type of pechay seeds used- Soil type (excluding nitrogen content)- Temperature- Pot size The statement itself is a hypothesis: If pechay plants are grown in nitrogen-rich soils, then they will develop larger leaves than those planted in nitrogen-poor soils because nitrogen stimulates vegetative growth. The "because" clause states the rationale behind the hypothesis.
