Which piece of evidence supports the theory of continental drift?
A.
similar animal fossils found in South America and Africa
B.
transform boundaries found near tropical coastal regions
C.
large deposits of volcanic rocks found on the ocean floor
D.
fossils of plants that typically grew in Arctic climates found in Africa

What major factors play a role in global warming? 1. human activity and normal climate conditions 2. natural factors and human activity 3. normal climate conditions and abnormal human activities 4. abnormal human activities and natural factors

All of the following statements about the biosphere are true except: a. light and heat from the sun do not affect the biosphere. b. the biosphere gets resources from earth's crust, hydrosphere and atmosphere. c. like "biology", the name for the biosphere comes from the greek word for life. d. the biosphere includes all living organisms on earth's surface.

People make choices about how to use resources.