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#1. Select all of the following that can cause diseases in plants:

Select all that apply:

#2. Black or brown soft mushy or slimy roots and is a sign of root rot. It is caused by over watering in soil and low oxygenation in hydroponic system

#3. Flushing soil or growing medium with water to remove the fertilize salts can mitigate over fertilization in soil.

#4. Changing the water and restarting with little or no nutrient can mitigate over fertilization in a hydroponic system.

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