Answer:
A: The authors attitude. Hope this helps :)
Explanation:
calmness is the answer you are looking for
The verb form that is used to indicate present perfect tense is have + verb - ed.
For example:
I <u>have painted </u>a beautiful painting.
1. Busiest
2. Close. Closer
3. Good. Better
4. Noisier.
5. Safest. Most dangerous
The correct answer should be A) causes of volcanic eruptions. This <span>topic is both appropriate and narrow enough for a research paper on geology because it constitutes a specific subject wherein no complex research is needed. All the other choices require extraction of details in simpler discussion.</span>