The call-out box draws attention to a particularly important piece of information; it basically a "look at me" sign.
Answer:
<h2>T</h2>
<u><em>True, The oil painting entitled The Dream uses visual metaphor.</em></u>
Explanation:
Water plays an incredible role in the ecosystems found in Yellowstone National Park and the surrounding areas. The water that flows through the park is a vital national resource. Precipitation in the mountains flows through networks of streams and rivers to provide important moisture and habitats to plants and wildlife. The park is home to the largest concentration of mammals in the lower 48 states, including more than 150 species of birds and six species of reptiles, all of whom rely on the fresh water.
