Crater Lake, Oregon, is an example of a volcanic _______.

a - neck
b - peak
c - caldera
d - batholith
e - lava flow


c - caldera

Environmental & Atmospheric Sciences

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In the last two or three centuries birthrates ________.

A. have skyrocketed, while death rates have plunged B. and death rates remained flat C. and death rates have plunged D. have changed little, while death rates have plunged E. and death rates have skyrocketed

Environmental & Atmospheric Sciences

Explain why the stratosphere is an inversion layer.

What will be an ideal response?

Environmental & Atmospheric Sciences

How can you tell whether a sugar solution is saturated or not?

A. There will be a precipitate if the water is heated. B. As long as there are more water molecules than sugar molecules, there is a saturated solution. C. Add more sugar; if it dissolves, it is saturated. D. Cool the solution to see if there is a precipitate.

Environmental & Atmospheric Sciences

Building tall smokestacks may improve local air quality

Indicate whether the statement is true or false

Environmental & Atmospheric Sciences