Final answer:
Artificial dispersal of weed seeds occurs when machinery transfers seeds from one land area to another.
Explanation:
Artificial dispersal of weed seeds occurs when machinery transfers the seeds from one land area to another. This method is considered a human-induced form of seed dispersal and can contribute to the spread of invasive plant species.
For example, machinery used in agriculture can unintentionally carry weed seeds from one field to another, aiding in the dispersal of these plants.
Artificial dispersal can have significant ecological impacts, influencing plant population dynamics and ecosystem balance.
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