Answer:
Cash Crop
Explanation:
An agricultural product grown for the purpose of profits and exports are generally considered "cash crops," for obvious reasons. You grow it, you sell it, you make cash, meanwhile it's being shipped off somewhere to be used/consumed. This ALSO has other names which mean the same, one of which is Commercial Crops.
<span>He did not, he said it did not need explanation.</span>
What is it you need exactly?
The collapse of the Indus Valley Civilizations can be attributed to the following factors. One, the trade networks declined and disappeared. This meant less work for traders and manufacturers. Two, changes in geography that caused the rivers to either dry up or change direction Three, the people abandoned the major cities. Four, without trade and access to water, people succumbed to disease and starvation.