When a star appears to twinkle or flicker, it is a condition called ____________________
Fill in the blank with correct word.
ANSWER: scintillation?
Environmental & Atmospheric Sciences
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The nucleus of an atom consists of one or more _____________________ and in some cases, one or more neutrons.
Fill in the blank(s) with the appropriate word(s).
Environmental & Atmospheric Sciences
Give an example of a native element What will be an ideal response?
Environmental & Atmospheric Sciences
Of the past 2.5 billion years, what % have been ice ages?
A) 60-70% B) 10-20% C) 40-50% D) 70-80%
Environmental & Atmospheric Sciences
If movement becomes very rapid, a rockslide may break up and become ________.
A. a mudflow B. a debris flow C. a rock avalanche D. a soil slip E. a rock fall
Environmental & Atmospheric Sciences