Why is the Earth called a "blue planet"? A. Because it has a lot of blue flowers. B. Because most of its surface is covered by water. C. Because the sky is always blue. D. Because people like the color blue. 相关知识点: ...
Do you know why the Earth is called the"Blue Planet"? Because about 70% of its surface is covered by water! However, there are still millions of people who have to walk for over half an hour to get clean water. Why is it so difficult for them to get clean water? Will we run out...
Why is the earth called the blue planet 42 2025-01 3 The beginning of winter 36 2025-01 4 Trees are disinfectors and silencers 47 2025-01 5 The fragrance of Osmanthus 29 2025-01 6 Black tea and green tea 48 2024-12 7 How often does the iron tree bloom ...
Davide Castelvecchi
Earth Day is on April 22nd.People say thanks to the Earth and learn ways to keep the Earth safe and clean.But saving the Earth is not just for grow-ups.Kids are also taking an active part in it.The American writer and filmmaker Lynne made a film called Young Voices for the Planet.It...
As the third planet from the sun, the earth seems to be justthe right distance away.和第二段中的 The plants created oxygen in theatmosphere. Oxygen is the gas that humans and animals breathe.可知,地球是可证实的唯一有生命存在的太阳系行星,其原因包括地球合适的温度、与太阳距离适中和大气里含有...
阅读理解 a The earth is the only planet that scientists think has life. Why does the earth have life while the other planets(行星)don't? For one thing, the earth is just the right temperature. As the third planet from the sun, the earth seems to be just the right distance away. The...
Earth's crust is the planet's outermost layer. It is made of solid rock and sits on top of another layer, called the mantle. The mantle flows and stretches like bubble gum, while the crust above it cracks like hard candy. When it does, it releases energy in a burst, which causes th...
What can we do to save the UN assembly set up a World Water Day.It is March 22.Everyone will have a lot of to think about on that day and during China Water Week from March 22 to 28.答案 我们的地球是一颗蓝色的行星.为什么是蓝色的呢?因为水.行星上大约71%是水.但是大部分的水不能喝...
battered craters and signs of liquid flowing upon its surface all point to a world that underwent massive geological change since its formation. On this basis alone, people like Stern have said, Pluto should be considered a planet since it is a dynamic place, a place that is not so static...