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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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

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