Sometimes adventurers had to fac

Sometimes adventurers had to face major survival concerns, such as predicting the weather （ ）.

circumstances

conditions

tendencies

situations

本题考查的是常见名词词义辨析。

天气情况“weather conditions”, circumstance指经济状况、影响某件事的周边环境； condition指食宿状况、影响某件事情的物质环境，比如天气； tendency指趋势； situation指局面，形势。故选择B选项。

句意：有时探险者需要面对重要的生存问题，比如对天气状况的预测。