Which of the following does not commonly occur when dark-colored mafic rocks weather?
A) Mafic minerals weather to clay minerals by hydrolysis.
B) Iron-bearing minerals can oxidize to form the iron oxide mineral hematite.
C) The abundant quartz in the rocks dissolves and forms silica-rich spring deposits.
D) Some minerals weather at different rate than other minerals.
D) Some minerals weather at different rate than other minerals.
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Agricultural subsidies
A) are no longer used by the U.S. government. B) are often achieved without spending money. C) distort the true market value of the agricultural products being subsidized. D) provide family farmers the opportunity earn living wages from their farms.
What environmental factors are normally used to distinguish between locations of biomes?
Soils and topography Hours of daylight and biodiversity Plants and animals Temperature and precipitation
Snow-albedo is an example of which type of feedback?
a. positive b. negative c. run-away d. formative e. cumulative
Which relative dating principle states that fragments included in a host rock are older than the host rock?
a) principle of inclusion b) principle of exclusion c) principle of cross-cutting relationship d) principle of lateral continuity e) principle of superposition