How long can human life on earth300字
How long can human life on earth? Involving sustainable development strategy, it was the earth for human survival and development of any of the resources, also involved in the external environment of the earth will remain unchanged in many years.
According to the theory of modern astronomers, the sun will be sustained and stable to provide heat and light to the earth, , the earth around the sun, the average radius will remain unchanged for a long time, up to a tiny swing, this process will continue for at least 4 billion. For more than 4 billion years later, the earth shake a shake immediately & quot; . As for humans, but cannot afford the any shaking of the earth!The sun to the earth, however, continue to provide 40 million years of light and heat is no problem,， because in the 40 million s, the consumed energy is less than 1% of the total sun! at least on the earth in a human can survive continuously in 40 million for the goal!.
The sun is the earth the most important factor in the external environment. how long can we live in the earth？
How long can human life on earth字相关文章：
★ How to Live a Colorful Life350字
★ How can we save electricity（如何节约用电）100字
★ How can we become good learners?150字
★ How can we learn English in everyday lif（我们如何在日常生活学习英语）450字
★ 如何才能成功-How to Succeed in Life300字
★ How long can human life on earth300字
How long can human life on earth300字
