A student notes that a rock contains mica and plagioclase feldspar and concludes that the rock is an intermediate rock. What piece of further information could best determine if the student's conclusion was the correct one?
A) the grain size of the crystals
B) the color of the rock
C) the amphibole content of the rock
D) the silicate content of the rock
Answer: D
Environmental & Atmospheric Sciences
You might also like to view...
A shiny rock contains minerals oriented preferentially in discontinuous layers. Which type of rock is it: igneous, metamorphic, or sedimentary?
What will be an ideal response?
Environmental & Atmospheric Sciences
The amount of solar radiation reaching the top of Earth’s atmosphere changes in 30-year cycles
a. True b. False
Environmental & Atmospheric Sciences
Which factor does NOT contribute to the intensity of a wildfire?
a. local temperature b. type of vegetation c. wind speed d. the initial cause of the fire e. moisture content of the fuel
Environmental & Atmospheric Sciences
An aneroid barometer measures air pressure using mercury or other liquids
Indicate whether the statement is true or false
Environmental & Atmospheric Sciences