There are several hypotheses, including warming or cooling of Earth, changes in seasonal fluctuations or ocean currents, and changing positions of the continents.
有几种假说，包括地球变暖或变冷，季节波动或洋流的变化，以及大陆位置的变化。
The radial velocity method, which looks for changes in a star's velocity toward or away from Earth triggered by a planet's orbit around that star.
径向速度法，即观察某颗行星环绕恒星的轨道所引起的恒星相对地球来往的速度变化。
Theories range from the extinction of the mammoth to sudden environmental changes caused by a comet impacting or earth or the break of a massive freshwater lake, lake Agassiz.
这些理论包括猛犸象的灭绝、因彗星或地球引起的环境剧烈变化、以及阿加西湖淡水的减少。
Evidence could include changes in the chemical composition of the asteroid, the size distribution of debris surrounding it, or other thermal changes that could be detected from Earth.
证据包括从地球可探测到的小行星的化学组成、周围碎屑颗粒分布、或者温度方面的改变。
Confusion over whether the Earth changes are caused by activity in the Sun or by the presence of Planet X abounds.
地球上的变化到底是由于太阳的活动还是因为附近存在X行星，这已经颇为混淆。
The awakening of the public to the reality that the Earth changes are not explained by Global Warming or blaming the Sun is steadfast.
公众正在对现实觉醒，认识到地球的变化不是全球变暖可以解释的，也不能固执地去责怪太阳。
Such changes can occur through the activity of fluids in the Earth and movement of igneous bodies or regional tectonic activity.
这些变化可以通过地球内的流体的活动，火成岩体的运动或区域性构造活动而发生。
Changes in the Earth through time can be documented by observing changes in the fossils in successive strata and the environments in which they formed or were preserved.
地球随时间的变化，可以通过连续的地层以及化石形成或保存的环境中所见到的变化得以证实。
And nevertheless this earth receives them by reason of the changes of these bodies into blood, and the transformations into the aerial or the fiery element.
但大地依然接纳了它们，因为它们的尸体转化为血、空气或火元素了。
The Book of Changes expounds the trinity or union of Heaven, Earth and man, which has attracted the attention of thinkers from different ages, and eventually become the Oriental mode of thinking.
《周易》阐述的天地人“三才”统一原理，为历代思想家所重视，成为一脉相承的东方思维模式。
The Book of Changes expounds the trinity or union of Heaven, Earth and man, which has attracted the attention of thinkers from different ages, and eventually become the Oriental mode of thinking.
《周易》阐述的天地人“三才”统一原理，为历代思想家所重视，成为一脉相承的东方思维模式。
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