Whydoestheearthhavefourseasons,whilethemoondoesnot?Theansweris ---weather.Clouds,winds,rainsands___---thesearealls___ ofweather.Theyareapartoftheweatherpicture.Threethingsmakethesesignsofweather.Whenyouk___ whattheyare,youwillalwaysseethemineverykindofweather.Withoutthemyouwouldhavenoweather.Thefirstthing...
You move around in the air just as afish moves around in the ocean.The third thing is water-water in the streams and rivers, water in the lakes, seas andoceans, and water in you.1. Why does the earth have four seasons?Because it has the weather.2. How many signs of weather are ...
题目:Why does life on earth depend much on the oceans? A. Sea plants produce most of the oxygen in the atmosphere. B. Carbon dioxide is converted into oxygen in oceans. C. The oceans provide an invaluable food resource. D. Productivity of fisheries can feed 80 million people.免费...
The earth is the only planet that scientists think has life. Why does the earth have life while the other planets don’t? For one thing, the earth is just the right temperature. Asthe third planetfrom the sun, the earth seems to be just the right distance away. The planets which are...
4.The earth is the only planet that scientists think has life.Why does the earth have life while the other planets don't?For one thing,the earth is just the right temperature.As the third planetfrom the sun,the earth seems to be just the right distance away.The planets which are closer...
The earth is the only planet that scientists think has life. Why does the earth have life while the other planets 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 dis-tance away. The planets which ...
AThe earth is the only planet(行星) that scientiststhink has life. Why doesthe earth have life while theother planets don't? For one thing, the earth has just theright temperature. As the third planet from the sun, theearth seems to be just the right distance away. The planetswhich ...
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...
So why doesn't Venus have them? Well, there are a few theories. One of them is that this has to do with the fact that Venus has no surface water that's needed to kind of lubricate the movement of the plates, you know, like oceans on Earth. 教授说地球上的地壳运动是一项...
Earth keeps pulsating every 26 seconds, and no one can figure out why. Maybe you can solve this strange seismic mystery.