What types of ecosystems are found in Pennsylvania?

Pennsylvania is characterized by a diverse range of ecosystems due to its varied topography, climate, and land use. The correct choice highlights the significant ecosystems present in the state, which include forests, wetlands, grasslands, and aquatic ecosystems.

Forests are prevalent throughout Pennsylvania, with both deciduous and coniferous trees making up vast areas. Wetlands play a crucial role in water filtration and provide habitat for various species. Grasslands, though less extensive than forests, can be found in certain areas and are essential for supporting local wildlife. Aquatic ecosystems encompass rivers, lakes, and streams, which are vital for biodiversity and serve as critical resources for both wildlife and human activities.

In contrast, the other options do not accurately represent the ecological diversity found in Pennsylvania. Industrial and urban ecosystems may exist but are not natural ecosystems; rather, they result from human development. Deserts and tundras do not naturally occur in Pennsylvania due to its climate, which is more conducive to temperate deciduous forests and wetlands. Focusing solely on grasslands and forests overlooks the ecological richness and variety that the state offers.