A day on Mars is about 24 Earth hours and 39.6 Earth minutes. So the day lengths on Mars and Earth are just about the same. Strictly speaking, that's the length of the sola â¦ r day. That's about a couple of minutes longer than the rotation period (called a sidereal day).
Quick Answer. A meaningful sentence is one that adds value to a paragraph by bringing in information. The sentence delivers a logical fact in addition to good subject-verb agreement, spelling and grammar. Every sentence must be written for a purpose, specifically to provide supporting facts.
Using Commas. 1. Use a comma to indicate a break or pause within a sentence. The comma (,) is a very versatile punctuation mark. There are dozens of situations that might require the use of a comma. One frequent case is the appositive -- a break within a sentence that supplements and adds information to the subject.