字幕表 動画を再生する 英語字幕をプリント Smart Learning for All Why are bees dying? Maybe because of mosquito nets. No. Honeybees are extremely important for the environment. Besides providing honey, honeybees pollinate crops. Giving us 70 to 75% of the fruits, vegetables and nuts that we eat. Dude. Bees are so necessary. Absolutely. However, in the last few years, honeybees have started to disappear. Millions of honeybee hives or colonies have died. This condition is known as colony collapse disorder or CCD. According to a prevailing research, a number of reasons are responsible for this disorder. One of them is pesticides like neonicotinoids. They kill crop eating insects and pests. However, neonicotinoids affect honeybee's central nervous system. Hence, it cannot navigate its way to the hive. It gets lost and eventually dies. Along with pesticides, parasites like Varroa mites, climate change and habitat loss. Are some factors that are contributing to the decline of bees. For more educational videos please visit http://www.SmartLearningforAll.com Also, don't forget to subscribe to our YouTube channel.
B2 中上級 米 ミツバチはなぜ死ぬのか?| みつばちが死滅する理由|#aumsum (Why are honey bees dying? | #aumsum) 129 4 Amy.Lin に公開 2021 年 01 月 14 日 シェア シェア 保存 報告 動画の中の単語