Which process is responsible for cracks in successive strata in the earth?

Which of the following is a reason why people are vacationing in slovakia

In a economy individuals answer the three basic and the central authority or leaders have little say in the economy.

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