Answer:
The answer is A.
<u>Oil companies are drilling</u>
Explanation:
In addition to accidental oil spills that can damage large bodies of water and soil compaction that can directly influence earthquakes, due to human error during oil extraction, the soil can become contaminated with formation water, which may contain heavy metals or oil, which causes the soil to be permanently eroded
This is what mainly happens in the Middle East:
- Contamination of aquifers by chemical oils.
- Deforestation for construction.
- <u>Damage to the geomembrane</u> caused by soil contamination.
<u>Answer:
</u>
The study carried out by Dr. Xu is a randomized controlled study.
<u>Explanation:</u>
- For the sake of determination of how the results of the students change by doing certain changes to the examination pattern, Dr. Xu devised that the change is considerably evident.
- Dr. Xu provided and intervention in the process of exam in the form of guides which helped the students to score better later. Hence, from the standard of conduct of the study, it can be said to be a randomized controlled study.
"To whom do individuals and groups report?" was the key questions addressed by this element.
<u>Explanation:</u>
An unbroken line of authority stretching from the top of the company to the lowest echelon and declare with transparency about who is accountable to whom known as "Chain of command".
From the bottom to the top of an organization it showcase company's hierarchy of reporting relationships. It also construct accountability and lays out lines of authority and decision-making power of authority or company.
The organizational structure is comprised of six fundamental elements named as: chain of command, centralization or decentralization, departmentalization, specialization of the work, span of control and the degree of formalization.
A cost structure which relies more heavily on fixed costs makes the company more sensitive to changes in sales revenue.
This makes <span>C. Either more or less sensitive to changes in sales revenue, depending on other factors. the correct answer :)</span>
