Question

1. we want to see whether soil from a volcano has more or less nutrients than soil from other inhospitable environments.

a. independent variable:
b. dependent variable:

1. we want to see if different types of cat have different metabolic rates, resulting in a weight difference.

a. independent variable:

Explanation:

• For question 5: The independent variable is what is being changed or manipulated, which is the source of the soil (volcano - soil or soil from other inhospitable environments). The dependent variable is what is being measured, which is the amount of nutrients in the soil.
• For question 6: The independent variable is the factor that varies, which is the type of cat. The dependent variable is the outcome being measured, which is the metabolic rate and weight.

Answer:

1. a. Source of the soil (volcano - soil or soil from other inhospitable environments)

b. Amount of nutrients in the soil

1. a. Type of cat