Answer: Traditional economic systems
Explanation: In other words, traditional economic systems are the most basic and ancient type of economies. Large parts of the world still qualify as traditional economies, primarily rural areas of second- or third-world countries, where most economic activity revolves around farming and other traditional activities.
Answer:
I'm no paleontologist but my answer would be:
Throughout time the tectonic plates slowly shift. This causes certain things fossil or not to be in landmasses thousands of miles away.
Answer:
The blank would be River
Explanation:
"River deltas are important in human civilization, as they are major agricultural production centers and population centers. They can provide coastline defense and can impact drinking water supply. They are also ecologically important, with different species' assemblages depending on their landscape position."
Hope this helps