A porphyritic texture where large crystals are embedded in a matrix of small crystal may form when ________

A) climate change causes crystals to cool at different rates
B) crystals of different compositions cool at different rates
C) a magma that has partially crystallized slowly moves to a different location where it then cools rapidly.
D) crystals of different compositions grow to different sizes


C

Environmental & Atmospheric Sciences

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In the 110-V circuit shown,

A) 110 C of charge flow through the lamp every second. B) 110 J of energy are converted to heat and light in the circuit every second. C) 110 J of energy are given to each coulomb of charge making up the current in the circuit. D) 110 J of energy are shared among all the coulombs in the circuit at any instant. E) none of the above.

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Air pollution problems seldom occur when winds are weak or calm

Indicate whether the statement is true or false

Environmental & Atmospheric Sciences

This is the first type of cloud an observer will see when a warm front is approaching

A) low-level stratus. B) nimbostratus. C) altostratus. D) cirrus.

Environmental & Atmospheric Sciences

Why do ecologists favor the term food web as opposed to food chain?

What will be an ideal response?

Environmental & Atmospheric Sciences