WORLD HISTORY

Detailed explanation-1: -The surrounding desert, mountains, and seas created natural barriers which protected the Ancient Chinese civilization from outside invaders. Its early civilization stayed contained within the natural barriers and did not start spreading until trade routes were developed.

Detailed explanation-2: -China was isolated from much of the rest of the world by dry deserts to the north and west, the Pacific Ocean to the east and mountains to the south. This enabled the Chinese to develop independently from other world civilizations.

Detailed explanation-3: -Physical barriers (water, mountains, deserts, plateaus provided protection.

Detailed explanation-4: -China was once a strong and stable Empire but it began its decline in the 1500s and continued until modern times. This was caused by major reasons such as a refusal to trade, an uprising against foreign control, and the effect from a change of monarchy to a democracy.