A colony with a warm climate and fertile soil likely had an economy based on:

Agriculture

Explanation:

Fertile soil and warm climate tend to be a perfect environment for the vast majority of crops to grow.

A colony that possess this crhacteristics will reap a lot of profit if they focused their resources in agriculture. They can grow different variety of crops and sold it to different market segmentation. On top of that, If one type of crops failed to be harvested, the income from the other crops that thrive usually would be more than enough to cover the loss.

although the crusades failed to capture jerusalem, they had several major impacts on western europe. they increased the authority of the king: sometimes nobles died in battle without leaving an heir in which case the king got their land. kings passed taxes to pay for the crusades.