Define catchment areas and drainage basins, and include a hypothesis stating how humans impact the health of freshwater resources.

Catchment areas, also known as drainage basins, refer to the regions of land where all precipitation collects and drains into a common outlet, like a river, lake, or ocean. These areas can vary in size from small tributaries to large river systems, and their health is closely tied to the volume and quality of freshwater they produce. Think of a catchment area as a giant funnel that collects rainwater! Humans significantly impact the health of freshwater resources through activities such as urban development, agriculture, and waste disposal. For instance, urbanization often leads to increased runoff, which can carry pollutants into water bodies, reducing water quality. Additionally, agricultural practices can lead to nutrient loading through fertilizers, which can trigger harmful algal blooms. As we continue to change our landscapes, it's crucial to adopt sustainable practices to protect these vital freshwater ecosystems!