What does harmonic tremor indicate is happening beneath the surface of a volcano? What will be an ideal response?


Magma is moving

Environmental & Atmospheric Sciences

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Lava flows ____

a. ?move so slowly that they do not present a danger to either life or property b. ?are often redirected by emergency efforts c. ?can be redirected only with long-term planning and construction d. ?move fast and are a threat to life and property e. ?move slowly enough that they are usually a threat only to property

Environmental & Atmospheric Sciences

Respiration uses carbon dioxide and produces oxygen and energy.

Answer the following statement true (T) or false (F)

Environmental & Atmospheric Sciences

Lakes that form along a glacier’s margin are called _______ lakes. Fill in the blank(s) with the appropriate word(s)

Environmental & Atmospheric Sciences

Which of the following allows cetaceans to remain submerged for extended periods of time?

A) Some have less red blood cells per unit of blood volume as terrestrial animals. B) They are faster breathers than terrestrial animals. C) They can extract almost 90% of the oxygen in each breath. D) They have a smaller blood volume per unit of body mass. E) They have less myoglobin in their muscle tissue as terrestrial animals.

Environmental & Atmospheric Sciences