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 up to 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...
Do you know why the Earth is called the"Blue Planet"?Because up to 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 of ...
解析 B。解析:文章提到It is often called the "lungs of the earth" because it absorbs a large amount of carbon dioxide and releases oxygen,A选项有很多空气不是被称为地球之肺的原因,C选项大不是主要原因,D选项地理位置不是被称为地球之肺的原因。
Do you know why the Earth is called the "Blue Planet"? Because up to 70 percent of its 1. is covered by water! However, there' re still hundreds of millions of people who ...
II. Answer the questions.1. Why is the Earth Hour event held?It is to help the planet2. What can you switch on while you switch off the lights?The fun at home. 3. What are the outdoor activities for Earth Hour according to the passage?"Take in the Sights and Look at the Stars"...
The Earth is the third planet from the sun. Why is the Earth not too hot or too cold for life to exist? A. Because of its distance from the sun. B. Because of its size. C. Because of its atmosphere. D. Because of its rotation. 相关知识点: ...
百度试题 结果1 题目That is ___ the earth pulls all bodies on it.A. why B. where C. when D. that 相关知识点: 试题来源: 解析 答案:A解析: 句中缺少原因 反馈 收藏
___the earth is round,why don't we fall off? A. As B. Since C. For D. Because 为什么` 不选别的 的理由是什么 相关知识点: 试题来源: 解析 B.since既然 AS因为;For 因为;because因为. 既然地球是圆的,我们怎么没有掉下去呢? 反馈...
(4)Why is the Amazon rainforest called the lungs of the planet? A A. The rainforest fixes carbon and produces over 20percent of all the Earth's oxygen. B. The rainforest is the treasure house of species. C. The air in the rainforest is very clear to breathe. D. The rainforest ...