Hellow guys, Welcome to my website, and you are watching 【一席】宋海軍：生物大滅絕. and this vIdeo is uploaded by 一席YiXi at 2019-10-12T02:41:54-07:00. We are pramote this video only for entertainment and educational perpose only. So, I hop you like our website.
Hellow guys, Welcome to my website, and you are watching 【一席】宋海軍：生物大滅絕. and this vIdeo is uploaded by 一席YiXi at 2019-10-12T02:41:54-07:00. We are pramote this video only for entertainment and educational perpose only. So, I hop you like our website.
| Name | 【一席】宋海軍：生物大滅絕 |
| Video Uploader | Video From 一席YiXi |
| Upload Date | This Video Uploaded At 12-10-2019 09:41:54 |
| Video Discription | 宋海軍，中國地質大學（武漢）教授。 在談大滅絕之前我想先問一個問題，大家知不知道現在地球上有多少種生物？幾萬、幾十萬，還是幾百萬？實際上是150萬。 這個數字聽起來非常多，但其實只佔地球曾經擁有的物種很少的一部分，只佔1%。也就是說我們地球上曾經居住著一億五千萬種生物，它們99%都滅絕了。 我們當前也面臨著一個類似的情況。大家可能都知道，當前地表正在升溫，碳排放正在加劇，所以就有科學家提出，現在會不會再有一次生物滅絕事件，也就是說會不會有第六次生物大滅絕。 |
| Category | Education |
| Tags | Education Download MP4 | Education Download MP3 | Education Download MP4 360p | Education Download MP4 480p | Education Download MP4 720p | Education Download MP4 1080p |
