问题

________（47）A. More water was added to the planet

________（47）

A. More water was added to the planet during several hypothesized large impacts from asteroids from the outer asteroid belt.

B.We know that the oceans existed as early as 100 million years after the formation of the Earth.

C.Still,the oceans only make up 0.023%of the Earth’s total mass.

D.Astronomers say Earth s water may have come from space.

E.The snow line is located in the outerasteroid belt,between the orbits of Mars and Jupiter.

F. Many geologists believe that the majority of Earth’s water generated through this process.

参考答案

您可能感兴趣的试题

______ , which banned slavery, was added to the American Constitution in December, 1865.A．

答案解析
She wanted to join the group of men______was to explore the mysteries of the planets.A．who

答案解析
The dog was surprised to see his______in the pool of water.A．reflectionB．statusC．imaginati

答案解析
_________（47）A.The task according to Kristy was t

答案解析
________（48）A. More water was added to the planet

答案解析
________（49）A. More water was added to the planet

答案解析