D. dominated Greece for a number of years
The greatest explanation for the overall low MMR (Maternal Mortality Rate) of industrialized nations is that these nations have higher GDPs--meaning that more money can be spend on things like healthcare and social "safety nets" for the poor.
Explanation:
<h2>Answers.</h2>
The Columbian Exchange introduced exotic crops like corn ,white potatoes, sweet potatoes ,beans,tomatoes, peanuts and blueberries to Europe. Non-native grains like wheat,barley and rice became commonplace on American soil and increased the variety of crops that could be stored through the winter.
This plan was called the "Open Door Policy". This policy was proposed by the USA in 1899. Under this, all western nations would have equal opportunities to trade in China. Thiss was in support of Chinese territorial and administrative integrity. It lasted for 40 years and it became the foundation for the American foreign policy in East Asia at that time.
