Which of the following reflects the environmental differences in Oklahoma's regions?

The choice highlighting "Western vs Eastern Climates" accurately illustrates the environmental differences in Oklahoma's regions because the state experiences distinct climatic variations that significantly influence the landscape, agriculture, and overall ecology.

In the western part of Oklahoma, the climate is characterized by a semi-arid environment, which results in drier conditions and can lead to grasslands and less forested areas. This region's climate supports agriculture suited for drought-resistant crops and livestock grazing. In contrast, the eastern part of the state enjoys a more humid subtropical climate, leading to greater rainfall and a rich diversity of flora, including lush forests and abundant vegetation. This climatic divide results in stark differences in agricultural practices, wildlife, and land use across the state, showcasing the significant impact of climate on regional environments.

Other options focus on aspects such as urban versus rural landscapes, types of terrain, and vegetation density, which do not provide as clear a distinction regarding the overarching climatic differences that impact the environment of Oklahoma’s regions.