Geography, 16.10.2020 14:01 ghari112345
Gypsum (CaSO4·2H2O) is a representative member of the sulfate mineral class where metal cations bond with the sulfate (SO4)2– anion. These crystals formed over hundreds of thousands of years as calcium from nearby limestones interacted with groundwater rich in sulfide ions from neighboring ores and heated by a subterranean magma chamber. Gypsum (which can also be a sedimentary rock) has many uses for society. Which of the following is not a common use of gypsum?
a. Wallboard/drywall for homes
b. A primary ingredient for toothpaste
c. Surgical splints and casts
d. pH reducing agent for acidic soils
Answers: 2
Geography, 22.06.2019 23:00, lollollollollol1
Canada plays an important role in the global community in all of the following ways except by a. acting as a superpower with influence over europe and asia. b. promoting arms control and disarmament. c. working with the commonwealth of nations to promote trade. d. promoting trade with japan and other asian countries.
Answers: 2
Geography, 23.06.2019 20:40, puchie1225
Which of the following best describes the circumstance under which countries block the importation of certain products into their country? a. importation blockade b. trade barrier c. trade inhibitor d. domestic protection act
Answers: 1
Gypsum (CaSO4·2H2O) is a representative member of the sulfate mineral class where metal cations bond...
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