Answer:
c. Vietnam
Explanation:
Vietnam is a notably elongated country with a long coastline provides it with easy to access marine resources
That is a philospher. Someone who thinks they can be God. Gosh.
Answer:
4 billion years
Explanation:
Scientists have found the oldest known rocks on Earth. They are 4.28 billion years old, making them 250 million years more ancient than any previously discovered rocks. Earth formed about 4.6 billion years ago from a disk of gas and dust circling the sun.
The earliest of civilizations were based around river valleys. This allowed them to irrigate fresh water to their crops allowing for better farming and therefore, bigger and better civilizations.