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.
Answer: The people migrated to other regions of Central Asia.
Explanation: To escape communism.
In modern times you are a country if the UN recognizes you as one
<u>UNASUR</u> is the newest trade block in Latin America.
Answer: Option E
<u>Explanation:</u>
UNASUR is a trade block that was signed in 2008 and came into force in the year 2011. The countries who are a part of this trade block are twelve in number and some of these countries are Chile, Peru, Uruguay, venezuela and eight more. The main focus of this block is on the physical region integration which includes fields like energy, infrastructure, education, health and many more.
Answer:
C. Those living north of the Tropic of Cancer experience varying climate zones and those along the Equator experience a tropical climate.