As of 2015, what was the deepest drill core yet taken that allowed scientists to study the Earth's interior?

A) 7.6 km
B) 12.3 km
C) 15 km
D) 50.5 km


Answer: B

Environmental & Atmospheric Sciences

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New oceanic crust is formed at ____

a. subduction zones b. transform faults c. meandering rivers d. glacial striations e. mid-ocean ridges

Environmental & Atmospheric Sciences

Saturation:

A) is a state of disequilibrium. B) occurs when the condensation rate equals the evaporation rate. C) requires the presence of other gases besides water vapor. D) occurs even when there are still substantial fluctuations in the concentration of water vapor above the surface.

Environmental & Atmospheric Sciences

What is the definition of an ephemeral stream?

A) A distributary channel on a stream delta B) A stream that meanders back and forth across a valley C) A stream that has interweaving channels and is choked with sediment D) An intermittent stream that only has water after specific episodes of rain

Environmental & Atmospheric Sciences

Sequences of deep-sea sediments, oceanic crust, and upper mantle rocks on land—called ophiolites—indicate the

presence of an old convergent boundary. a. True b. False

Environmental & Atmospheric Sciences