Water had also appeared other
planets |
87.
|
Like Mars but, the earth, |
88.
|
it had disappeared later. was not immediately |
89.
|
obvious that water was to be (基本的)to the |
90. |
(develop)of life. What many scientists |
91.
|
believe is that the continued presence of water allowed the earth to
dissolve
(harm)gases and acids
into the |
92. |
oceans and seas. This produced a reaction, |
93.
|
made it possible for life to develop. |
94.
|