Public Lands (Parks,zoos,national Forests,national Seashores,etc.)help Sustain Biodiversity

Q29: Deforestation affects agriculture,water supplies,and biodiversity.

Q30: Ecologists have identified _ hot spots (or

Q31: Although we have explored only a small

Q32: What are three major economical and three

Q34: _ contributes to the greenhouse effect by

Q35: It is important to protect watersheds in

Q37: The increases in American forests today are

Q39: Selective logging and strip cutting are not

Q43: Forests cover about _ of the United

Q55: Vegetation in some parts of the Great