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 ...
I.阅读理解Earth is the only planet that scientists think has life.Why does Earth have life while the other planets(行星)don't? For one thing, Earth has just the right temperature. As the third planet from the sun, Earth seems to bejust the right distance away. The planets which are cl...
题目The warming of Earth's climate(气候) is called global(全球的)warming .If global warming carries on,many plants and animals living today on the Earth could have problems surviving(生存).It could also mean more droughts(干旱)and floods(洪水).Over the last one hundred ...
Mars would be a more successful planet for exploration and settlement because it contains the basic resources necessary for humans to survive. Since the environment of Mars is more similar to that of Earth and it contains resources necessary to help life exist, it should be the only option for...
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 planets which are...
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...
Why Is Planet Earth On Life Support? - Waking Timesfeatured
根据第一段中内容及As the third planet from the sun, the earth seems to be just the right distance away.可知,距离太阳第三远的行星指的是地球。故选C。 文章最后一段提到火星上有干涸的河床的迹象,但这一点并不能证实火星上存在生命,因为还没有生命迹象,故A项说法不正确。其他三项都与文章相符。故选...