AP Environmental Science Question of the Day

In Alaska and Northern Canada, the most northern latitudes that consist mostly of tundra, composed largely of small shrubs, arctic grasses, and lichens

Thinned-out stands in a redwood forest that allow for more shrubs and grasses to grow than in denser stands

An oasis formed by an above-ground water source in the North African desert

A riparian zone with diverse aquatic vegetation and wildlife that encompasses a watershed

A slash-and-burn site in the tropical rainforest that has been converted to rangeland