The transcontinental railroad is defined as the series of railroad networks wherein it encompasses the American continent situated from the East to the West and vice versa. It is said that the entire trip across America during 1869 when the transport system would take an approximate time of ten hours.
Humans first appeared on Earth during the Paleolithic Era, in the steppes and savannah of Africa, before migrating to Eurasia, the Americas, and Australia.
The Silk Road was important because it helped to generate trade and commerce between a number of different kingdoms and empires. Now and days we would have our ingredients to make thing from them like spices from India or tea from china.
<span>c. an individual's moral and religious duties</span>
Answer:
They developed water management that included drainage systems
Explanation: