Describe the origin and development of the major indian cultures of the americas

The origin of some of the Indian cultures goes back to the Nomadic Asians who arrived in America through a Bering Land Bridge.

Explanation:

According to archaeologists, the earliest immigrants of native Indians came from Asia around 15,000 years ago, and they spread in several regions of America. Native Americans have passed through Beringia to America mainland. Beringia is a landform that presented during the Pleistocene Epoch, joining Alaska with Siberia. The Native Indian developed into cultures like the Mayans in Central America, the Incas in Peru, and the Aztecs in Mexico.  

the answer is b.india

john maynard keynes developed new economic theories in response to the : b) great depression of the 1930s. his theories are so important that they are known as "keynesianism". in his works he supports the idea of a government with deeper involvement and intervention to end the great depression.