What is a key characteristic of a "low-risk" pesticide?

A key characteristic of a "low-risk" pesticide is that it poses minimal environmental hazard and has a lower toxicity level for humans and non-target species. This definition aligns with the criteria established by regulatory bodies, which aim to ensure that these pesticides can be used safely without causing significant harm to the environment or public health.

Low-risk pesticides are typically derived from natural sources or are designed to break down quickly in the environment, reducing their potential for long-term ecological damage. Additionally, their lower toxicity levels mean that they are less likely to cause adverse effects to humans, pets, or beneficial organisms, making them a safer choice for pest management in various settings, such as agriculture, landscaping, and residential areas.

The other options do not accurately reflect the characteristics of low-risk pesticides. The cost aspect does not determine whether a pesticide is low-risk; both low-risk and conventional pesticides can vary widely in price. Effectiveness against common pests is not a defining characteristic of low-risk pesticides, as they can still be quite effective while maintaining a lower risk profile. Moreover, low-risk pesticides are subject to regulatory oversight to ensure safety and efficacy, which contradicts the idea that they are not regulated by law.