It will become marshy and wet
A climax community would form
There would be one less form of erosion on earth.
If solid H2O was more dense than the liquid form, ice (the solid form) would sink in water. In the freezing weather, ice would form, that ice would sink, and more ice would form. It wouldn't take long for a lake in a higher latitude to freeze solid. Additionally, it would never thaw out in the summer because the ice would be blanketed below a layer of water. The lake would become ice, and stay mostly that way before refreezing the next winter.
bacterias growth would be slowed
Matter is lost and energy is released.
The past form of "freeze" would be "froze."
No, it would not. Wedging cannot occur if the solid form (ice) didn't occupy a greater volume than the liquid form.
Since the rain occurred over some period of time, you would use the imperfect tense here, and it would be the impassive form. "Se llovió" would be "it rained", or perhaps "it was raining", or even "it used to rain" depending on context."
Condensation
It's past tense. infinitive: freeze past: froze past participle: frozen
none, it's a verb
It would form a compound.
I think 'it'd' is not a correct short form/contraction. Maybe: It had rained all day. = It'd rained all day. But I think this is not acceptable English
the cell would not form
A climax community would form
The accumulated water on the window probably froze if it is cold enough
froze.... -^.^- fridge-shortened form of refrigerator perhaps.