The boy, curious by nature, investigated, but found not a thing.
1. The Heading 2. The inside address 3. The greeting also called the salutation 4. The body 5. The complimentary close and 6 . The signature line hope this helps!
It would look like Modern would be the participle.
Because Modern modifies what the Essay is, Essay is the word modified.
I'm pretty sure this is right, since no other word in the sentence seems to modify anything.
The answer is 'd' ,but the complete indirect object is 'her parents' not just 'parents'
The indirect object always answers the question 'who'.
Carol sent who? The answer is 'her parents' which is the indirect object.
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.