Explain how a convection current in the earth is formed.

To be eligible for naturalization, an immigrant must be able to speak, read, write, and understand: a) his name b) poetry c) the constitution d) the english language

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

What are the similarities and differences in the way geologists and biologists approximate the age of the earth? justify your response in two or more complete sentences.