The length of a day, a month and a year are not the same during earth's history and they all changed, also earth temperature, atmospheric content, the areas of land and ocean, etc. all changing and changed and nothing to do about human being. Even current climate changes has about 99% to do about human being activities! CO2 reduction is not important for nature and earth, but relatively a big impact for human life!
不好吃懒做 发表评论于 2022-08-09 13:14:43
地球绕轴自转一圈所需的时间就是一天 - Actually it's Not true! 一天是 a little bit longer 地球绕轴自转一圈 (hard so explain here without a diagram, sorry). But generally speaking it's true!
