What is a notable environmental feature of Alaska's landscape?

A notable environmental feature of Alaska's landscape is Arctic Tundra. The Arctic Tundra is characterized by its cold climate, short growing seasons, and the presence of permafrost, which is permanently frozen subsurface soil. This unique ecosystem is home to a variety of plant and animal species adapted to harsh conditions, including mosses, lichens, and low shrubs that thrive in minimal soil. The tundra plays a crucial role in regulating the Earth’s climate and provides a habitat for wildlife such as caribou, arctic foxes, and migratory birds.

While the other options include various types of biomes found in other regions, they do not accurately represent Alaska’s predominant environmental feature. Tropical rainforests are found in warmer, humid regions and are not present in Alaska. Deserts typically require dry conditions and lack the moisture levels found in Alaska. Grasslands are also not a defining characteristic of Alaska’s diverse ecosystem, as the state is more known for its tundra, boreal forests, and mountainous terrain.