Coal/ fossil fuels is most likely the answer.
<span>1600 Pennsylvania Ave NW, Washington, DC. Hope this helped! :)</span>
Answer:
basically very cold areas
The answer is A. Root crops, including yams, sweet potatoes, and taro, became more common.
The root crops became more common, and practically the basic food source. This was due to the fact that the climate and soil on the Pacific islands were excellent for growing them, and of course for having a sustainable food source.