Answer:
the upheaval caused by urban industrial laborers
You will face droughts heat waves flooding the effects of that is that salt production will go down and you will have low crystallization
The correct answer is A. <span> shared a common language and religion.</span>
Explain it from a kids perspective, don't use big words and make sure to explain it so that it would be easy to understand what u mean. Go step by step. take it slow, and make it professional.
Hope I helped! ;)