The Earth’s core is cooling down very slowly over time. One day, when the core has completely cooled and become solid, it will have a huge impact on the whole planet. Scientists think that when that happens, Earth might be a bit like Mars, with a very thin atmosphere and no more volcanoes or earthquakes. Then it would be very difficult for life to survive – but that won’t be a problem for several billions of years.
There are a total of four commonwealth states in the U.S.A: Commonwealth of Kentucky, Commonwealth of Massachusetts, Commonwealth of Pennsylvania & Commonwealth of Virginia.
(P.S. Please mark this answer as the brainliest answer.... Thank you)
Answer:
A. Japan wanted to protect its culture.
Explanation:
For most of Japan's history, it has been isolated with closed borders and little to no trade, and then that all changed.
The answer to this question is:
A. Barley and wheat were both civilizations' main crops
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