Air pollution has blocked normal communication between plants and insects, and this has a greater impact on pollinating insects such as bees. Although, as far as the number of bee populations is affected, no one can take it at this stage. A complete monitoring data was produced, but the study found that the common plant volatile substance myrcene is easily destroyed by diesel exhaust, and the lack of myrcene can disorient bees on their way to find a honey source. After myrcene was removed, only 37% of bees could still identify where the honey was. According to this text, the following statements are true:. ['Air pollution seriously damages bee survival.', 'Air pollution seriously affects bees.', 'Air pollution keeps bees from finding honey.', 'Air pollution severely damages honey sources.']