Orange Trees wouldn't be considered a dry farming crop.
I don't know your options, but there is one clear cause and effect relationship between the two:
As the agricultural methods advanced, people were more productive creating food. This means that not everyone had to engage in farming! And this allowed specialization for other jobs, just as smiths, which typically live in the cities.
<span>The level of the oceans' surfaces is known as SEA level. </span>
Answer:
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<span>The Earth spins on its axis because of conservation of angular momentum. It will keep spinning unless something stops it.
(</span>chacha was used in the making of this answer)