The big bang, in which the universe as we know it originated, occurred about:
a. 10,000 years ago
b. 25 billion years ago.
c. 13.7 billion years ago.
d. 13.7 million years ago.
c
Environmental & Atmospheric Sciences
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Wallboard (Sheetrock) is made from gypsum.
Answer the following statement true (T) or false (F)
Environmental & Atmospheric Sciences
Nanotechnology looks at working with particles the size of
A) 100 microns or larger. B) 1 to 100 nanometers, the realm of individual atoms and molecules. C) 50 grams and smaller. D) infinitesimally small, the size of electrons.
Environmental & Atmospheric Sciences
Water particles in deep-water waves move in ________ orbits.
Fill in the blank(s) with the appropriate word(s).
Environmental & Atmospheric Sciences
Which localized winds develop in a pressure gradient becoming warm and dry as they flow down leeward slopes?
A. Santa Ana winds B. valley breezes C. chinook winds D. mountain breezes E. katabatic winds
Environmental & Atmospheric Sciences