<span>Independent variable: Time plants are watered (ex. 8am, 12pm, 4pm, 8pm, 12am)
Dependent variable: growth of the plant
Controlled variable: 1. same type plants, 2. same amount of sunlight, 3. same type of dirt, 4. same type of water, 5. same amount of water (each are self explanatory of how to control)</span>
Answer:
c
Explanation:
the mantle is the layer where there are materials are melted
Carbon, Hydrogen, and Oxygen
Ratio: 6:12:6
