Directions: Determine which study design is best for each of the following research topics. Justify your answer. I. Research Topic Research Design Justification 1. Water Purifying Activity of Water Hyacinth (Eichhornia crassipes) 2. Effectiveness of Marijuana as Medicinal Drug:A Descriptive Study 3. Diuretic cffect of Corn Hair (Zea mays) tea on Sprague Dawley Rats 4. Wound Healing (Moringa oleifera) ointment in albino Rats 5. Bluetooth Based Automation System for Automating Light Emitting Diode (LED) Bulb and incandescent Bulb Using Different Brands of Cellphones a

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