Compare and contrast igneous rocks and volcanic rocks. How and why are they different?

Provide specific examples of both. What will be an ideal response?


The student should recognize that much of the difference between igneous and volcanic rocks is
the result of different cooling rates. Igneous rocks commonly are coarse-grained because they
cool slowly below the surface of the Earth and volcanic rocks commonly are glassy or finegrained
because they cool quickly above the surface of the Earth. Examples may include granite
or gabbro for igneous rocks and basalt or rhyolite for volcanic rocks.

Environmental & Atmospheric Sciences

You might also like to view...

Canada and Russia are discussing opening the _____ _____, a shipping route from Canada's port of Churchill, on Hudson Bay, to the northwester Russian port of Murmansk

Fill in the blank(s) with correct word

Environmental & Atmospheric Sciences

There is a growing body of evidence that high waste economies are responsible for widespread ______ capital degradation.

Fill in the blank(s) with the appropriate word(s).

Environmental & Atmospheric Sciences

Basins may form

A. on both oceanic and continental plates. B. along plate margins. C. as a result of normal faulting. D. All of these choices are correct.

Environmental & Atmospheric Sciences

Which of the following best describes what is meant by an ecological footprint?

a. It is the average size of the lot on which a family home is built. b. It is the number of acres necessary to grow enough food to support a family. c. It is the geographic area in which a person travels during the course of their average daily activities. d. It is the amount of biologically-productive land and water needed to supply the people in a particular country or area with the resources they need. e. It is the amount of tillable agricultural land necessary to supply the food requirements of a nation.

Environmental & Atmospheric Sciences