A biological hazard is one originating from an organism that is foreign (in presence or concentration) to the organism being affected. Many biological hazards are associated with food, including certain viruses, parasites, fungi, bacteria, and plant and seafood toxins.hree people crossing the Atlantic in a rowboat face a hazard of drowning... Three hundred people crossing the Atlantic in an ocean liner face the same hazard of drowning... The risk to each individual per crossing is given by the probability of the occurrence of an accident in which he or she drowns...
The best soil mix for your container-grown vegetables is one that is well-drained, well-aerated and has a pH that is close to neutral. Soil-containing or soilless potting mixes offer all of these features.
Given those things, plus the restricted growing area, regular garden soil would soon compact, inhibiting root growth. Plus, bringing in soil from the ground might also introduce insects and diseases. Thatâs why, when filling containers or raised beds for growing, you want to use premium quality potting soil. A good potting mix is one that is fluffy, holds moisture, and gives plant roots the perfect balance of air, moisture, nutrition, and anchorage.