What caused China to stay isolated for so many years? A. natural barriers of mountains, deserts and oceans

B. wars among neighboring countries

C. lack of good transportation

D. illness and disease

Gettysburg address question. lincoln uses the images of birth and rebirth in this address. why?

Which of the following discoveries would be most likely to cause a scientific paradigm shift? a. the discovery of more rings around uranus b. the discovery of a new pathogenic virus transmitted by mosquitoes c. the discovery that a dormant volcano is showing signs of activity d. the discovery of a new species of salamander in the amazon rainforest e. the discovery that excess heat is radiating from the center of the earth and causing global climate change

According to this chart, which country is likely to have the most economic freedom with regards to entrepreneurship?