A process known as ____________________ is used to convert solid coal into synthetic natural gas, removing sulfur and other impurities.
Fill in the blank(s) with the appropriate word(s).
coal gasification
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The process where governments prescribe the use to which parcels of land may be put is ________
Fill in the blank(s) with the appropriate word(s).
Not much dolomite is observed to be precipitating from solution in modern geologic environments. This probably means that:
a. the conditions were more conducive to precipitation of dolomite in the geologic past b. dolomite must have formed from calcite after deposition by the replacement of calcium by magnesium in the mineral structure c. dolomite is probably forming today, but we haven't located the environments where it is taking place d. dolomite must have formed from gypsum after deposition by the replacement of calcium by magnesium in the mineral structure
A condition or a process in one place generally has an impact on other places. This is known as:
a. spatial distribution b. a model c. spatial interaction d. spatial pattern
Soil texture refers to the relative amounts of ________ in soil
A) sand, silt, and clay B) mineral content and water saturation C) water, organic matter, and minerals D) detritus and humus E) organic matter and minerals