11) How many layers are typically found in a temperate deciduous forest?
12) What is the name of the largest tropical rainforest in the world?
13) What gas is released into the atmosphere by trees and other photosynthesizing organisms?
14) What percent of Earth’s land surface is covered by forests?
15) What type of trees are found in a coniferous forest?
16) Which of the following is not a biome?
17) What percentage of the Earth's land surface does the world's forest cover?
18) What type of forest is home to the giant redwoods?
19) What is the common name for the trees in a boreal forest?
20) Which type of forest is most common in the eastern United States?