What act might prevent Robert from replenishing the erosion on his beach?

The Natural Resources Protection Act plays a significant role in environmental management in Maine, specifically with regard to activities that could adversely affect natural resources. Under this act, any modifications to the shoreline or beach areas, such as adding sand to replenish erosion, typically require a permit. This regulation is designed to protect the ecosystem and prevent further degradation of coastal and shoreline environments.

By requiring a permit, the act ensures that any replenishment activities are carefully assessed for their environmental impact. This includes considerations such as the potential disruption to wildlife habitats and water quality. Failure to obtain the necessary permit could lead to fines or mandated removal of the added materials. Therefore, if Robert intends to replenish the erosion on his beach, he must first comply with the stipulations of the Natural Resources Protection Act to avoid any legal repercussions.

The other options address different aspects of property regulations and responsibilities, but they do not directly relate to the act that governs beach replenishment and erosion management, which is why they do not apply in this scenario.