To what does Hadean apply? Is it an "official" part of the time scale?
What will be an ideal response?
Hadean refers to the earliest interval (eon) of Earth history—before the oldest known rocks. The name Hadean derives from Hades, which is Greek for "underworld"—a reference to the "hellish" conditions that prevailed on Earth early in its history. Hadean is an informal term used on some geologic time scales but not all.
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In European cities, many residents of the dreary suburbs are ________ who face discrimination and prejudice
A) native Europeans who wish to preserve their ancient traditions but B) persons of color or recent immigrants from Africa or Asia C) immigrants from northern Europe D) immigrants from Russia and Poland, as well as other parts of Eastern Europe, E) None of the above
What were some of the ways early scholars tried to determine the age of Earth? What will be an ideal response?
Most solifluction takes place ________.
A. in all areas that do not have permafrost B. in most areas that have permafrost C. in some areas that may not have permafrost D. Solifluction is not associated in any way with permafrost.
How will explosive volcanic eruptions affect global temperatures?
A) Temperatures will raise B) Temperatures will lower C) Temperatures will remain the same