冻土带与森林之间在照片上呈现出一条分界线。

The line between tundra and forest runs through this image.

youdao

K-T分界线灰烬的不是燃烧的森林，那又是什么呢？

So if burning forests didn't create the K-T boundary soot, what did?

youdao

K-T分界线灰烬的不是燃烧的森林，那又是什么呢？

So if burning forests didn't create the K-T boundary soot, what did?

youdao