Final answer:
The act of throwing rubbish onto someone else's land is a form of 'trespass to land,' which is a tort that may lead to legal consequences for the perpetrator, such as removal of the waste and possible compensation for damages.
Step-by-step explanation:
The action described where one person throws rubbish onto another person's land and leaves it there is known as “trespass to land.” Trespass to land is a common law tort that occurs when an individual wrongfully interferes with another's property without permission. In this case, the act of throwing rubbish constitutes a physical invasion of property, which is a direct interference. The property owner may be entitled to take legal action to remove the rubbish and could potentially seek compensation for any damages or cleanup costs.