To craft a closing statement for the explanatory text that challenges the reader, the author could effectively do so by:
By suggesting that people in today’s world can learn the effects of drought by continuing to study how ancient people dealt with it.
This approach encourages readers to reflect on their present circumstances and consider the valuable lessons that can be drawn from history. It urges them to think critically about the impact of climate issues, like drought, on society and how past experiences can inform future actions.