The correct answer is A. This is the case of using comma before a coordinating conjunction <em>and</em> because it links two independent clauses. We can observe that there two parts of this full sentence and each part is independent from each other. Both of them have their own subject and verb. Therefore, we are using a comma before <em>and</em>.
Assuming nitrogen is an ideal gas, we use the relation PV=nRT tp predict what will happen to the system. From the equation, nR/P is constant. So, if the sample is cooled to 72K then volume would decrease. This decrease in volume would affect the density of the substance. It would increase its density. Therefore, the answer would be density.
What is the name of the book????
Answer:
rhyme scheme.
Explanation:
The given lines are an example of rhyme scheme.
A rhyme scheme can be defined as the sound at the end of each verse in a poem. This is a repetitive sound that occurs at the end of each verse in a song or poem. There are various types of rhyme schemes in literature such as internal rhyme, slant rhyme, etc.
In the given lines, the end of each verse rhyme with each other, that is <em>sky </em>and <em>high. </em>Therefore, the correct answer is option A.
