【简答题】The earth is a special planet in the solar system. The explosion of the earth produced carbon, nitrogen, vapor and other gases, 小题1: (make) the earth’s atmosphere. What is even more important is _ 小题2...
【简答题】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. Th...
【简答题】The earth is the only planet that scientists are certain has life .What does the earth have that the other planets don’t ? For one thing , the earth has just the right temperature . As the third plane...