Which best describes an environmental concern in the twentieth century? depleted soils in once-fertile agricultural areas of africa and asia promotion of government-sponsored pronatalist measures increasing global cooling as a result of greenhouse gas emissions uncontrolled industrialization posing a dire threat to earth�s ecology

i discarded the supernatant and kept the pellet in this part of the experiment because you have to return all unused chemicals into their original containers at the end of each labratory.

explanation:

`stare decisis is a legal doctrine that obligates courts to follow historical cases when making a ruling on a similar current or future case. stare decisis ensures that cases with identical facts be approached in the same way, unless overruled by the same court or a higher court such as the us supreme court. simply put, it binds courts to follow legal precedents set by previous decisions.

stare decisis is a latin term meaning "to stand by that which is decided".