Predict means to "guess beforehand" so I'd say forecast.
The correct answer would be A because you need a comma in between the <em>A </em>and <em>S</em>
Disappear, because a verb is a action or occurrience.
Answer:
The first one looks like a informative paragraph while second looks like a persuavive hope this helps
Explanation: First one is giving facts about space second is persuading you to drink lots of water for health benefits
A compound sentence contains <em>two or more independent clauses.</em>