Pros and cons of chinas 1978 open door policy

Pros: China had a major economic growth due to trading with other nations, other nations were not aloud to divide China into separate colonies 

Cons: Chinese culture and traditions were lost, Opium was brought in which killed many people

Geothermic gradient is the rate of increasing temperature with respect to increasing the depth in the earths interior. away from tech tonic plates boundaries, it is about 25-40 c/km (72-87 degrees f/mi) of depth near the surface in most of the world.