Pls help me , this is due in 2 hours
1 answer:
Answer:
A)
- Control: untouched dish
- Dependent variable: the different salt concentrations for preventing the growth of bacteria
- Independent variable: agar
B)
- Control: the group that is not exposed to any pollutant (5th group)
- Dependent variable: the effect of pollution on soybean plants
- Independent variable: the pollutant
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