What are the two main types of forest ecosystems found in Pennsylvania?

The two main types of forest ecosystems found in Pennsylvania are deciduous and coniferous forests. Deciduous forests are characterized by trees that shed their leaves annually, such as oaks and maples, and are often found in areas that experience four distinct seasons. These forests provide diverse habitats and contribute significantly to the biodiversity of the region.

On the other hand, coniferous forests, typically consisting of evergreen trees like pines and spruces, are adapted to colder climates and can tolerate nutrient-poor soils. These forests play a crucial role in ecosystem stability, serving as habitats for various wildlife and contributing to carbon sequestration.

The combination of both deciduous and coniferous forests reflects Pennsylvania's varied climate and geography, providing important ecological functions and resources for the state. The other options do not represent the primary forest ecosystems relevant to Pennsylvania, as beaches and wetlands refer to different types of ecosystems and tropical forests are not characteristic of the temperate climate found in this region.