Cloud iridescence is caused mainly by ____
A) refraction
B) reflection
C) diffraction
D) dispersion
C
Environmental & Atmospheric Sciences
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What percentage of synthetic chemicals commonly used today has been adequately tested to determine if they are mutagen, carcinogen, or teratogen?
a. almost 90% b. 75% c. 50% d. 25% e. 2%
Environmental & Atmospheric Sciences
Tectonic plates are pieces of the ________ that float on the more fluid ________ below.
a) asthenosphere; lithosphere b) lithosphere; asthenosphere c) lithosphere; mesosphere d) mantle; crust e) crust; lithosphere
Environmental & Atmospheric Sciences
The volcano called ________ is the youngest of the Hawaiian volcanoes
Fill in the blank(s) with correct word
Environmental & Atmospheric Sciences
In the United States, large areas of ________ are blanketed with a cover of loess.
A. the Rocky Mountains B. the Midwest C. Arizona and New Mexico D. Canada E. California
Environmental & Atmospheric Sciences