Which of the following is a political issue of most of South America

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

Name one type of data that h-r diagrams do not show.

Which of teh following would explain the importance of the trans-siberian railroad to russia's economy? (schoology test)